Red Hat Security Advisory: container-tools:rhel8 security update
Multiple security vulnerabilities have been identified in the container-tools module of Red Hat Enterprise Linux 8. 6, affecting tools such as podman, buildah, skopeo, and runc. These include denial of service issues due to excessive resource consumption and memory exhaustion, incorrect parsing of IPv6 host literals, unexpected TLS session resumption, and an SSH client panic. The vulnerabilities are tracked under seven CVEs ranging from 2025 to 2026. Red Hat has issued an important security advisory with updates addressing these issues. No known exploits in the wild have been reported. The advisory provides updated packages to remediate these vulnerabilities.
AI Analysis
Technical Summary
The container-tools module in Red Hat Enterprise Linux 8.6 contains several security vulnerabilities affecting container management tools. These include CVE-2025-47913 (SSH client panic due to unexpected SSH_AGENT_SUCCESS), CVE-2025-61729 (denial of service via crafted certificate causing excessive resource consumption), CVE-2025-61726 (memory exhaustion in URL query parameter parsing), CVE-2025-68121 (unexpected TLS session resumption), CVE-2026-25679 (incorrect IPv6 host literal parsing), CVE-2026-32283 (denial of service via multiple TLS 1.3 key update messages), and CVE-2026-32280 (denial of service in certificate chain building). These vulnerabilities impact the Go language libraries used by container tools, potentially causing service disruptions or crashes. Red Hat has released updated packages to fix these issues as detailed in advisory RHSA-2026:19634.
Potential Impact
The vulnerabilities can lead to denial of service conditions through resource exhaustion or unexpected behavior in TLS and SSH client operations. This may cause container management tools to crash or behave unexpectedly, potentially disrupting container workflows. No known active exploitation has been reported. The impact is rated as high by Red Hat Product Security.
Mitigation Recommendations
Red Hat has released updated packages for the container-tools module in Red Hat Enterprise Linux 8.6 to address these vulnerabilities. Users should apply the security update as described in Red Hat advisory RHSA-2026:19634 and the referenced article https://access.redhat.com/articles/11258. No additional mitigation steps are indicated beyond applying the official patches.
Red Hat Security Advisory: container-tools:rhel8 security update
Description
Multiple security vulnerabilities have been identified in the container-tools module of Red Hat Enterprise Linux 8. 6, affecting tools such as podman, buildah, skopeo, and runc. These include denial of service issues due to excessive resource consumption and memory exhaustion, incorrect parsing of IPv6 host literals, unexpected TLS session resumption, and an SSH client panic. The vulnerabilities are tracked under seven CVEs ranging from 2025 to 2026. Red Hat has issued an important security advisory with updates addressing these issues. No known exploits in the wild have been reported. The advisory provides updated packages to remediate these vulnerabilities.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The container-tools module in Red Hat Enterprise Linux 8.6 contains several security vulnerabilities affecting container management tools. These include CVE-2025-47913 (SSH client panic due to unexpected SSH_AGENT_SUCCESS), CVE-2025-61729 (denial of service via crafted certificate causing excessive resource consumption), CVE-2025-61726 (memory exhaustion in URL query parameter parsing), CVE-2025-68121 (unexpected TLS session resumption), CVE-2026-25679 (incorrect IPv6 host literal parsing), CVE-2026-32283 (denial of service via multiple TLS 1.3 key update messages), and CVE-2026-32280 (denial of service in certificate chain building). These vulnerabilities impact the Go language libraries used by container tools, potentially causing service disruptions or crashes. Red Hat has released updated packages to fix these issues as detailed in advisory RHSA-2026:19634.
Potential Impact
The vulnerabilities can lead to denial of service conditions through resource exhaustion or unexpected behavior in TLS and SSH client operations. This may cause container management tools to crash or behave unexpectedly, potentially disrupting container workflows. No known active exploitation has been reported. The impact is rated as high by Red Hat Product Security.
Mitigation Recommendations
Red Hat has released updated packages for the container-tools module in Red Hat Enterprise Linux 8.6 to address these vulnerabilities. Users should apply the security update as described in Red Hat advisory RHSA-2026:19634 and the referenced article https://access.redhat.com/articles/11258. No additional mitigation steps are indicated beyond applying the official patches.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:19634
- Cve Count
- 7
- Additional Cves
- ["CVE-2025-61726","CVE-2025-61729","CVE-2025-68121","CVE-2026-25679","CVE-2026-32280","CVE-2026-32283"]
- Cvss Version
- null
Threat ID: 6a16096be29bf47b5063236c
Added to database: 5/26/2026, 8:58:19 PM
Last enriched: 5/26/2026, 9:46:57 PM
Last updated: 5/27/2026, 4:53:46 AM
Views: 2
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