Red Hat Security Advisory: buildah security update
The buildah package provides a tool for facilitating building OCI container images. Among other things, buildah enables you to: Create a working container, either from scratch or using an image as a starting point; Create an image, either from a working container or using the instructions in a Dockerfile; Build both Docker and OCI images. Security Fix(es): * runc: container escape and denial of service due to arbitrary write gadgets and procfs write redirects (CVE-2025-52881) 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
CVE-2025-52881 is a vulnerability in the runc component used by buildah and podman tools on Red Hat Enterprise Linux 10 platforms. It allows container escape and denial of service via arbitrary write gadgets and procfs write redirects. This vulnerability affects multiple architectures including x86_64, s390x, ppc64le, and aarch64. Red Hat has released security updates for buildah and podman packages to fix this issue. The advisories reference updated package versions such as buildah-1.39.5-1.el10_0 and podman-5.6.0-6.el10_1. The vulnerability is tracked under CWE-59 and has been rated with high severity by Red Hat. No active exploitation has been reported.
Potential Impact
The vulnerability allows an attacker to escape container isolation and potentially cause denial of service by exploiting arbitrary write gadgets and procfs write redirects in the runc component. This could compromise container security boundaries, impacting containerized workloads on affected Red Hat Enterprise Linux 10 systems. The issue affects container tools buildah and podman, which are widely used for container image building and management.
Mitigation Recommendations
Red Hat has released official security updates addressing CVE-2025-52881 for buildah and podman packages on Red Hat Enterprise Linux 10 and related products. Users should apply the updates as described in the Red Hat advisories (RHSA-2025:21220 and RHSA-2025:21633) and follow guidance at https://access.redhat.com/articles/11258. Applying these updates mitigates the vulnerability. No additional mitigation steps are indicated by the vendor.
Red Hat Security Advisory: buildah security update
Description
The buildah package provides a tool for facilitating building OCI container images. Among other things, buildah enables you to: Create a working container, either from scratch or using an image as a starting point; Create an image, either from a working container or using the instructions in a Dockerfile; Build both Docker and OCI images. Security Fix(es): * runc: container escape and denial of service due to arbitrary write gadgets and procfs write redirects (CVE-2025-52881) 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
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-52881 is a vulnerability in the runc component used by buildah and podman tools on Red Hat Enterprise Linux 10 platforms. It allows container escape and denial of service via arbitrary write gadgets and procfs write redirects. This vulnerability affects multiple architectures including x86_64, s390x, ppc64le, and aarch64. Red Hat has released security updates for buildah and podman packages to fix this issue. The advisories reference updated package versions such as buildah-1.39.5-1.el10_0 and podman-5.6.0-6.el10_1. The vulnerability is tracked under CWE-59 and has been rated with high severity by Red Hat. No active exploitation has been reported.
Potential Impact
The vulnerability allows an attacker to escape container isolation and potentially cause denial of service by exploiting arbitrary write gadgets and procfs write redirects in the runc component. This could compromise container security boundaries, impacting containerized workloads on affected Red Hat Enterprise Linux 10 systems. The issue affects container tools buildah and podman, which are widely used for container image building and management.
Mitigation Recommendations
Red Hat has released official security updates addressing CVE-2025-52881 for buildah and podman packages on Red Hat Enterprise Linux 10 and related products. Users should apply the updates as described in the Red Hat advisories (RHSA-2025:21220 and RHSA-2025:21633) and follow guidance at https://access.redhat.com/articles/11258. Applying these updates mitigates the vulnerability. No additional mitigation steps are indicated by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:2975
- Cve Count
- 1
Threat ID: 6a160977e29bf47b50642821
Added to database: 05/26/2026, 20:58:31 UTC
Last enriched: 08/14/2026, 22:25:43 UTC
Last updated: 09/10/2026, 19:36:51 UTC
Views: 72
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