CVE & CISA-KEV CatalogNVD
CVE-2025-23419
MEDIUMEPSS 84th pctl4.3
CVSS v3
Description
When multiple server blocks are configured to share the same IP address and port, an attacker can use session resumption to bypass client certificate authentication requirements on these servers. This vulnerability arises when TLS Session Tickets https://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_session_ticket_key are used and/or the SSL session cache https://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_session_cache are used in the default server and the default server is performing client certificate authentication. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
How to fix
Remediation Available
nginxDebian
Fixed in:1.18.0-6.1+deb11u4CVE-2025-23419
Fixed in:1.22.1-9+deb12u1CVE-2025-23419
Fixed in:1.26.3-2CVE-2025-23419
Fixed in:1.26.3-2CVE-2025-23419
nginxRed Hat / RHEL
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginxRocky
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-all-modulesRocky
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-all-modulesRed Hat / RHEL
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-coreRocky
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-coreRed Hat / RHEL
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-core-debuginfoRed Hat / RHEL
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-core-debuginfoRocky
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-debuginfoRocky
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-debuginfoRed Hat / RHEL
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-debugsourceRocky
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-debugsourceRed Hat / RHEL
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-filesystemRed Hat / RHEL
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-filesystemRocky
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-mod-develRocky
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-mod-develRed Hat / RHEL
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-mod-http-image-filterRocky
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-mod-http-image-filterRed Hat / RHEL
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-mod-http-image-filter-debuginfoRed Hat / RHEL
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-mod-http-image-filter-debuginfoRocky
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-mod-http-perlRed Hat / RHEL
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-mod-http-perlRocky
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-mod-http-perl-debuginfoRed Hat / RHEL
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-mod-http-perl-debuginfoRocky
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-mod-http-xslt-filterRed Hat / RHEL
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-mod-http-xslt-filterRocky
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-mod-http-xslt-filter-debuginfoRed Hat / RHEL
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-mod-http-xslt-filter-debuginfoRocky
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-mod-mailRocky
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-mod-mailRed Hat / RHEL
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-mod-mail-debuginfoRocky
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-mod-mail-debuginfoRed Hat / RHEL
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-mod-streamRocky
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-mod-streamRed Hat / RHEL
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-mod-stream-debuginfoRocky
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
nginx-mod-stream-debuginfoRed Hat / RHEL
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
Fixed in:2:1.20.1-22.el9RHSA-2025:7331
libnginx-mod-rtmpUbuntu
Fixed in:1.18.0-0ubuntu1.7USN-7285-1
Fixed in:1.18.0-6ubuntu14.6USN-7285-1
nginxUbuntu
Fixed in:1.18.0-0ubuntu1.7USN-7285-1
Fixed in:1.18.0-6ubuntu14.6USN-7285-1
Fixed in:1.24.0-2ubuntu7.3USN-7285-2
nginx-commonUbuntu
Fixed in:1.18.0-0ubuntu1.7USN-7285-1
Fixed in:1.18.0-6ubuntu14.6USN-7285-1
Fixed in:1.24.0-2ubuntu7.3USN-7285-2
nginx-coreUbuntu
Fixed in:1.18.0-0ubuntu1.7USN-7285-1
Fixed in:1.18.0-6ubuntu14.6USN-7285-1
Fixed in:1.24.0-2ubuntu7.3USN-7285-2
nginx-docUbuntu
Fixed in:1.18.0-0ubuntu1.7USN-7285-1
Fixed in:1.18.0-6ubuntu14.6USN-7285-1
nginx-extrasUbuntu
Fixed in:1.18.0-0ubuntu1.7USN-7285-1
Fixed in:1.18.0-6ubuntu14.6USN-7285-1
Fixed in:1.24.0-2ubuntu7.3USN-7285-2
nginx-fullUbuntu
Fixed in:1.18.0-0ubuntu1.7USN-7285-1
Fixed in:1.18.0-6ubuntu14.6USN-7285-1
Fixed in:1.24.0-2ubuntu7.3USN-7285-2
nginx-lightUbuntu
Fixed in:1.18.0-0ubuntu1.7USN-7285-1
Fixed in:1.18.0-6ubuntu14.6USN-7285-1
Fixed in:1.24.0-2ubuntu7.3USN-7285-2
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 RequiredLow
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Exploit Intelligence
2.65%probability of exploitation in 30 days
84thpercentile
Elevated risk: more likely to be exploited than 84% of all known CVEs.
References
Vendor Advisory1
Third-Party Advisory2
Related Vulnerabilities
Other CWE-863 (Incorrect Authorization) vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2023-22518 | Critical | 9.8 | 100% | KEV + Ransom | Fix |
| CVE-2023-38035 | Critical | 9.8 | 100% | KEV + Ransom | - |
| CVE-2022-46169 | Critical | 9.8 | 100% | KEV | Fix |
| CVE-2025-29927 | Critical | 9.1 | 100% | - | Fix |
| CVE-2024-38856 | Critical | 9.8 | 99% | KEV | Fix |
| CVE-2020-36289 | Medium | 5.3 | 99% | - | Fix |
Embed a live status badge for CVE-2025-23419
Markdown
[](https://tridentstack.com/cve/CVE-2025-23419)HTML
<a href="https://tridentstack.com/cve/CVE-2025-23419"><img src="https://tridentstack.com/cve/badge/CVE-2025-23419.svg" alt="CVE-2025-23419"></a>Find and fix vulnerabilities across your fleet
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Start freeThis 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 2026-01-27.