CVE & CISA-KEV CatalogNVD
CVE-2026-8401
CRITICAL9.8
CVSS v3
Description
Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11.
How to fix
Remediation Available
firefoxDebian
Fixed in:150.0.3-1CVE-2026-8401
firefoxRocky
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el7_9.ppc64RHSA-2026:26551
Fixed in:0:140.11.0-1.el7_9RHSA-2026:26551
Fixed in:0:140.11.0-1.el7_9RHSA-2026:26551
Fixed in:0:140.11.0-1.el7_9RHSA-2026:26551
Fixed in:0:140.11.0-1.el7_9RHSA-2026:26551
Fixed in:0:140.11.0-1.el8_6RHSA-2026:26606
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26630
Fixed in:0:140.11.0-1.el8_4RHSA-2026:26629
Fixed in:0:140.11.0-1.el8_4RHSA-2026:26629
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26630
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26630
Fixed in:0:140.11.0-1.el8_6RHSA-2026:26606
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
firefoxRed Hat / RHEL
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el7_9RHSA-2026:26551
Fixed in:0:140.11.0-1.el7_9.ppc64RHSA-2026:26551
Fixed in:0:140.11.0-1.el7_9RHSA-2026:26551
Fixed in:0:140.11.0-1.el7_9RHSA-2026:26551
Fixed in:0:140.11.0-1.el7_9RHSA-2026:26551
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26630
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26630
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26630
Fixed in:0:140.11.0-1.el8_4RHSA-2026:26629
Fixed in:0:140.11.0-1.el8_4RHSA-2026:26629
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_6RHSA-2026:26606
Fixed in:0:140.11.0-1.el8_6RHSA-2026:26606
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
firefox-debuginfoRed Hat / RHEL
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el7_9.ppc64RHSA-2026:26551
Fixed in:0:140.11.0-1.el7_9RHSA-2026:26551
Fixed in:0:140.11.0-1.el7_9RHSA-2026:26551
Fixed in:0:140.11.0-1.el8_4RHSA-2026:26629
Fixed in:0:140.11.0-1.el8_6RHSA-2026:26606
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26630
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26630
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
firefox-debuginfoRocky
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el7_9.ppc64RHSA-2026:26551
Fixed in:0:140.11.0-1.el7_9RHSA-2026:26551
Fixed in:0:140.11.0-1.el7_9RHSA-2026:26551
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26630
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_4RHSA-2026:26629
Fixed in:0:140.11.0-1.el8_6RHSA-2026:26606
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26630
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
firefox-debugsourceRocky
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26630
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_6RHSA-2026:26606
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_4RHSA-2026:26629
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26630
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
firefox-debugsourceRed Hat / RHEL
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el10_0RHSA-2026:27715
Fixed in:0:140.11.0-1.el10_2RHSA-2026:21380
Fixed in:0:140.11.0-1.el8_4RHSA-2026:26629
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26630
Fixed in:0:140.11.0-1.el8_6RHSA-2026:26606
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26630
Fixed in:0:140.11.0-1.el8_10RHSA-2026:21382
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
firefox-x11Red Hat / RHEL
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
firefox-x11Rocky
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26492
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26493
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21378
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26491
thunderbirdRocky
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el8_4RHSA-2026:26270
Fixed in:0:140.11.0-1.el8_4RHSA-2026:26270
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26268
Fixed in:0:140.11.0-1.el8_6RHSA-2026:26536
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26268
Fixed in:0:140.11.0-1.el8_6RHSA-2026:26536
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26268
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
thunderbirdRed Hat / RHEL
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26268
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el8_4RHSA-2026:26270
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26268
Fixed in:0:140.11.0-1.el8_4RHSA-2026:26270
Fixed in:0:140.11.0-1.el8_6RHSA-2026:26536
Fixed in:0:140.11.0-1.el8_6RHSA-2026:26536
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26268
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
thunderbird-debuginfoRocky
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el8_6RHSA-2026:26536
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26268
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26268
Fixed in:0:140.11.0-1.el8_4RHSA-2026:26270
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
thunderbird-debuginfoRed Hat / RHEL
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el8_6RHSA-2026:26536
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26268
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26268
Fixed in:0:140.11.0-1.el8_4RHSA-2026:26270
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
thunderbird-debugsourceRed Hat / RHEL
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26268
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26268
Fixed in:0:140.11.0-1.el8_4RHSA-2026:26270
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el8_6RHSA-2026:26536
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
thunderbird-debugsourceRocky
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el10_2RHSA-2026:22325
Fixed in:0:140.11.0-1.el10_0RHSA-2026:26539
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26268
Fixed in:0:140.11.0-1.el8_8RHSA-2026:26268
Fixed in:0:140.11.0-1.el8_4RHSA-2026:26270
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el8_6RHSA-2026:26536
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el8_10RHSA-2026:22643
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_8RHSA-2026:21381
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_4RHSA-2026:26174
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_2RHSA-2026:26269
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
Fixed in:0:140.11.0-1.el9_6RHSA-2026:26521
DeveloperEditionWindows application
Mozilla Firefox (en-US)Windows application
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploit Intelligence
0.31%probability of exploitation in 30 days
24thpercentile
Low risk: more likely to be exploited than 24% of all known CVEs.
References
Vendor Advisory1
Other references28
- bugzilla.mozilla.org
- mozilla.org
- mozilla.org
- mozilla.org
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- bugzilla.redhat.com
- security.access.redhat.com
Related Vulnerabilities
Other CWE-693 (Protection Mechanism Failure) vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2013-2465 | Critical | 9.8 | 99% | KEV + Ransom | - |
| CVE-2024-21412 | High | 8.1 | 95% | KEV + Ransom | Fix |
| CVE-2013-0431 | Medium | 5.3 | 90% | KEV + Ransom | - |
| CVE-2019-1003030 | Critical | 9.9 | 76% | KEV | - |
| CVE-2025-40536 | High | 8.1 | 72% | KEV | Fix |
| CVE-2025-0411 | High | 7.0 | 67% | KEV | Fix |
Common questions
How do I fix CVE-2026-8401?
Published advisories record a fix for 17 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.
Is CVE-2026-8401 being actively exploited?
Not that we know of. CVE-2026-8401 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.31% is the estimated probability that it will be exploited in the next 30 days. That is higher than 24% of all scored CVEs.
How severe is CVE-2026-8401?
CVE-2026-8401 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2026-8401 affect?
Published advisories record a fix for firefox (Debian), firefox (Rocky), firefox (Red Hat / RHEL), firefox-debuginfo (Red Hat / RHEL), and 13 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
Embed a live status badge for CVE-2026-8401
Markdown
[](https://tridentstack.com/cve/CVE-2026-8401)HTML
<a href="https://tridentstack.com/cve/CVE-2026-8401"><img src="https://tridentstack.com/cve/badge/CVE-2026-8401.svg" alt="CVE-2026-8401"></a>Find and fix vulnerabilities across your fleet
TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-15.