CVE-2025-65105

Apptainer is an open source container platform. In Apptainer versions less than 1.4.5, a container can disable two of the forms of the little used --security option, in particular the forms --security=apparmor:<profile> and --security=selinux:<label> which otherwise put restrictions on operations that containers can do. The --security option has always been mentioned in Apptainer documentation as being a feature for the root user, although these forms do also work for unprivileged users on systems where the corresponding feature is enabled. Apparmor is enabled by default on Debian-based distributions and SElinux is enabled by default on RHEL-based distributions, but on SUSE it depends on the distribution version. This vulnerability is fixed in 1.4.5.

• CWE-61
• CWE-706

• https://github.com/apptainer/apptainer/commit/4313b42717e18a4add7dd7503528bc15af905981Patch
• https://github.com/apptainer/apptainer/commit/82f17900a0c31bc769bf9b4612d271c7068d8bf2Patch
• https://github.com/apptainer/apptainer/pull/3226Issue Tracking
• https://github.com/apptainer/apptainer/security/advisories/GHSA-j3rw-fx6g-q46jPatch, Vendor Advisory
• https://github.com/opencontainers/runc/security/advisories/GHSA-cgrx-mc8f-2prmNot Applicable
• https://github.com/sylabs/singularity/security/advisories/GHSA-wwrx-w7c9-rf87Not Applicable

Published

Dec 2, 2025

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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