CVE & CISA-KEV CatalogNVD
CVE-2026-39832
HIGH9.1
CVSS v3
Description
When adding a key to a remote agent constraint extensions such as [email protected] were not serialized in the request. Destination restrictions were silently stripped when forwarding keys, allowing unrestricted use of the key on the remote host. The client now serializes all constraint extensions. Additionally, the in-memory keyring returned by NewKeyring() now rejects keys with unsupported constraint extensions instead of silently ignoring them.
How to fix
Remediation Available
golang-go.cryptoDebian
Fixed in:1:0.52.0-1CVE-2026-39832
aardvark-dns-2:1.10.1Red Hat / RHEL
Fixed in:2.module+el8.10.0+24482+e50f4e4f.ppc64le::container-tools:rhel8RHSA-2026:35833
Fixed in:2.module+el8.10.0+24482+e50f4e4f.s390x::container-tools:rhel8RHSA-2026:35833
Fixed in:2.module+el8.10.0+24482+e50f4e4f.src::container-tools:rhel8RHSA-2026:35833
Fixed in:2.module+el8.10.0+24482+e50f4e4f.x86_64::container-tools:rhel8RHSA-2026:35833
Fixed in:2.module+el8.10.0+24482+e50f4e4f.aarch64::container-tools:rhel8RHSA-2026:35833
aardvark-dns-2:1.10.1Rocky
Fixed in:2.module+el8.10.0+24482+e50f4e4f.src::container-tools:rhel8RHSA-2026:35833
Fixed in:2.module+el8.10.0+24482+e50f4e4f.x86_64::container-tools:rhel8RHSA-2026:35833
Fixed in:2.module+el8.10.0+24482+e50f4e4f.s390x::container-tools:rhel8RHSA-2026:35833
Fixed in:2.module+el8.10.0+24482+e50f4e4f.ppc64le::container-tools:rhel8RHSA-2026:35833
Fixed in:2.module+el8.10.0+24482+e50f4e4f.aarch64::container-tools:rhel8RHSA-2026:35833
aardvark-dns-2:1.5.0Red Hat / RHEL
Fixed in:2.module+el8.8.0+23884+2031fc78.x86_64::container-tools:rhel8RHSA-2026:49944
Fixed in:2.module+el8.8.0+23884+2031fc78.src::container-tools:rhel8RHSA-2026:49944
Fixed in:2.module+el8.8.0+23884+2031fc78.ppc64le::container-tools:rhel8RHSA-2026:49944
aardvark-dns-2:1.5.0Rocky
Fixed in:2.module+el8.8.0+23884+2031fc78.x86_64::container-tools:rhel8RHSA-2026:49944
Fixed in:2.module+el8.8.0+23884+2031fc78.ppc64le::container-tools:rhel8RHSA-2026:49944
Fixed in:2.module+el8.8.0+23884+2031fc78.src::container-tools:rhel8RHSA-2026:49944
buildahRed Hat / RHEL
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
buildahRocky
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
buildah-1:1.29.8Rocky
Fixed in:1.module+el8.8.0+24545+b713e821.x86_64::container-tools:rhel8RHSA-2026:49944
Fixed in:1.module+el8.8.0+24545+b713e821.src::container-tools:rhel8RHSA-2026:49944
Fixed in:1.module+el8.8.0+24545+b713e821.ppc64le::container-tools:rhel8RHSA-2026:49944
buildah-1:1.29.8Red Hat / RHEL
Fixed in:1.module+el8.8.0+24545+b713e821.ppc64le::container-tools:rhel8RHSA-2026:49944
Fixed in:1.module+el8.8.0+24545+b713e821.src::container-tools:rhel8RHSA-2026:49944
Fixed in:1.module+el8.8.0+24545+b713e821.x86_64::container-tools:rhel8RHSA-2026:49944
buildah-2:1.33.14Red Hat / RHEL
Fixed in:4.module+el8.10.0+24482+e50f4e4f.x86_64::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.src::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.s390x::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.aarch64::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.ppc64le::container-tools:rhel8RHSA-2026:35833
buildah-2:1.33.14Rocky
Fixed in:4.module+el8.10.0+24482+e50f4e4f.src::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.s390x::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.ppc64le::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.x86_64::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.aarch64::container-tools:rhel8RHSA-2026:35833
buildah-debuginfoRed Hat / RHEL
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
buildah-debuginfoRocky
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
buildah-debuginfo-1:1.29.8Red Hat / RHEL
Fixed in:1.module+el8.8.0+24545+b713e821.x86_64::container-tools:rhel8RHSA-2026:49944
Fixed in:1.module+el8.8.0+24545+b713e821.ppc64le::container-tools:rhel8RHSA-2026:49944
buildah-debuginfo-1:1.29.8Rocky
Fixed in:1.module+el8.8.0+24545+b713e821.ppc64le::container-tools:rhel8RHSA-2026:49944
Fixed in:1.module+el8.8.0+24545+b713e821.x86_64::container-tools:rhel8RHSA-2026:49944
buildah-debuginfo-2:1.33.14Red Hat / RHEL
Fixed in:4.module+el8.10.0+24482+e50f4e4f.aarch64::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.ppc64le::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.s390x::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.x86_64::container-tools:rhel8RHSA-2026:35833
buildah-debuginfo-2:1.33.14Rocky
Fixed in:4.module+el8.10.0+24482+e50f4e4f.s390x::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.ppc64le::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.aarch64::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.x86_64::container-tools:rhel8RHSA-2026:35833
buildah-debugsourceRed Hat / RHEL
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
buildah-debugsourceRocky
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
buildah-debugsource-1:1.29.8Red Hat / RHEL
Fixed in:1.module+el8.8.0+24545+b713e821.x86_64::container-tools:rhel8RHSA-2026:49944
Fixed in:1.module+el8.8.0+24545+b713e821.ppc64le::container-tools:rhel8RHSA-2026:49944
buildah-debugsource-1:1.29.8Rocky
Fixed in:1.module+el8.8.0+24545+b713e821.x86_64::container-tools:rhel8RHSA-2026:49944
Fixed in:1.module+el8.8.0+24545+b713e821.ppc64le::container-tools:rhel8RHSA-2026:49944
buildah-debugsource-2:1.33.14Red Hat / RHEL
Fixed in:4.module+el8.10.0+24482+e50f4e4f.x86_64::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.aarch64::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.ppc64le::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.s390x::container-tools:rhel8RHSA-2026:35833
buildah-debugsource-2:1.33.14Rocky
Fixed in:4.module+el8.10.0+24482+e50f4e4f.x86_64::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.aarch64::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.s390x::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.ppc64le::container-tools:rhel8RHSA-2026:35833
buildah-testsRocky
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
buildah-testsRed Hat / RHEL
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
buildah-tests-1:1.29.8Rocky
Fixed in:1.module+el8.8.0+24545+b713e821.ppc64le::container-tools:rhel8RHSA-2026:49944
Fixed in:1.module+el8.8.0+24545+b713e821.x86_64::container-tools:rhel8RHSA-2026:49944
buildah-tests-1:1.29.8Red Hat / RHEL
Fixed in:1.module+el8.8.0+24545+b713e821.x86_64::container-tools:rhel8RHSA-2026:49944
Fixed in:1.module+el8.8.0+24545+b713e821.ppc64le::container-tools:rhel8RHSA-2026:49944
buildah-tests-2:1.33.14Rocky
Fixed in:4.module+el8.10.0+24482+e50f4e4f.x86_64::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.ppc64le::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.s390x::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.aarch64::container-tools:rhel8RHSA-2026:35833
buildah-tests-2:1.33.14Red Hat / RHEL
Fixed in:4.module+el8.10.0+24482+e50f4e4f.ppc64le::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.x86_64::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.s390x::container-tools:rhel8RHSA-2026:35833
Fixed in:4.module+el8.10.0+24482+e50f4e4f.aarch64::container-tools:rhel8RHSA-2026:35833
buildah-tests-debuginfoRocky
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el10_2RHSA-2026:36199
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
Fixed in:2:1.43.1-3.el9_8RHSA-2026:37410
This vulnerability affects an unusually large number of packages. The highest-confidence fixes are shown above; the full list is longer. Check the referenced advisories for complete coverage.
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
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U
Exploit Intelligence
0.60%probability of exploitation in 30 days
46thpercentile
Moderate risk: more likely to be exploited than 46% of all known CVEs.
References
Vendor Advisory1
Issue Tracking1
Mailing List1
Other references34
- go.dev
- go.dev
- 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
- 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-502 (Deserialization of Untrusted Data) vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2023-0669 | High | 7.2 | 100% | KEV + Ransom | Fix |
| CVE-2021-44228 | Critical | 10.0 | 100% | KEV + Ransom | Fix |
| CVE-2021-35464 | Critical | 9.8 | 100% | KEV + Ransom | Fix |
| CVE-2025-53770 | Critical | 9.8 | 100% | KEV + Ransom | Fix |
| CVE-2023-29300 | Critical | 9.8 | 100% | KEV + Ransom | - |
| CVE-2025-59287 | Critical | 9.8 | 100% | KEV | Fix |
Common questions
How do I fix CVE-2026-39832?
Published advisories record a fix for 409 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-2026-39832 being actively exploited?
Not that we know of. CVE-2026-39832 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.60% is the estimated probability that it will be exploited in the next 30 days. That is higher than 46% of all scored CVEs.
How severe is CVE-2026-39832?
CVE-2026-39832 has a CVSS v3 base score of 9.1, rated important. 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-2026-39832 affect?
Published advisories record a fix for golang-go.crypto (Debian), aardvark-dns-2:1.10.1 (Red Hat / RHEL), aardvark-dns-2:1.10.1 (Rocky), aardvark-dns-2:1.5.0 (Red Hat / RHEL), and 405 more. The list on this page is capped, so there may be more.
Embed a live status badge for CVE-2026-39832
Markdown
[](https://tridentstack.com/cve/CVE-2026-39832)HTML
<a href="https://tridentstack.com/cve/CVE-2026-39832"><img src="https://tridentstack.com/cve/badge/CVE-2026-39832.svg" alt="CVE-2026-39832"></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 2026-08-25.