Red Hat Security Advisory: podman security update
The podman tool manages pods, container images, and containers. It is part of the libpod library, which is for applications that use container pods. Container pods is a concept in Kubernetes. Security Fix(es): * crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation (CVE-2026-32281) * crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages (CVE-2026-32283) * crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
The podman tool, part of the libpod library for managing container pods, is affected by three denial of service vulnerabilities in the Go crypto libraries. CVE-2026-32280 and CVE-2026-32281 relate to inefficient certificate chain validation and certificate chain building in crypto/x509 and crypto/tls, while CVE-2026-32283 involves denial of service via multiple TLS 1.3 key update messages in crypto/tls. These vulnerabilities can cause denial of service conditions when processing TLS certificates or key update messages. Red Hat has released security updates for podman in Red Hat Enterprise Linux 10.0 Extended Update Support and related products to fix these issues.
Potential Impact
Successful exploitation of these vulnerabilities can cause denial of service conditions in applications using podman due to inefficient or improper handling of TLS certificate chains and TLS 1.3 key update messages. This could disrupt container management operations relying on podman, potentially impacting availability of containerized workloads.
Mitigation Recommendations
Red Hat has released security updates for podman in Red Hat Enterprise Linux 10.0 Extended Update Support and related CodeReady Linux Builder products. Users should apply the updates as described in the Red Hat advisory RHSA-2026:20570 to remediate these denial of service vulnerabilities. Refer to https://access.redhat.com/articles/11258 for update instructions. Patch status is confirmed as fixed in the updated packages provided by Red Hat.
Red Hat Security Advisory: podman security update
Description
The podman tool manages pods, container images, and containers. It is part of the libpod library, which is for applications that use container pods. Container pods is a concept in Kubernetes. Security Fix(es): * crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation (CVE-2026-32281) * crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages (CVE-2026-32283) * crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The podman tool, part of the libpod library for managing container pods, is affected by three denial of service vulnerabilities in the Go crypto libraries. CVE-2026-32280 and CVE-2026-32281 relate to inefficient certificate chain validation and certificate chain building in crypto/x509 and crypto/tls, while CVE-2026-32283 involves denial of service via multiple TLS 1.3 key update messages in crypto/tls. These vulnerabilities can cause denial of service conditions when processing TLS certificates or key update messages. Red Hat has released security updates for podman in Red Hat Enterprise Linux 10.0 Extended Update Support and related products to fix these issues.
Potential Impact
Successful exploitation of these vulnerabilities can cause denial of service conditions in applications using podman due to inefficient or improper handling of TLS certificate chains and TLS 1.3 key update messages. This could disrupt container management operations relying on podman, potentially impacting availability of containerized workloads.
Mitigation Recommendations
Red Hat has released security updates for podman in Red Hat Enterprise Linux 10.0 Extended Update Support and related CodeReady Linux Builder products. Users should apply the updates as described in the Red Hat advisory RHSA-2026:20570 to remediate these denial of service vulnerabilities. Refer to https://access.redhat.com/articles/11258 for update instructions. Patch status is confirmed as fixed in the updated packages provided by Red Hat.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:20570
- Cve Count
- 3
- Additional Cves
- ["CVE-2026-32281","CVE-2026-32283"]
- Cvss Version
- null
Threat ID: 6a16096de29bf47b50634d9f
Added to database: 05/26/2026, 20:58:21 UTC
Last enriched: 07/30/2026, 10:51:25 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 155
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.