Bug 2418392 (CVE-2025-65105)

Summary: CVE-2025-65105 Apptainer: Apptainer: Security bypass due to disabling security options
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Apptainer. This vulnerability allows a container to disable the --security=apparmor:<profile> and --security=selinux:<label> options, bypassing security restrictions on container operations via the --security option. This affects unprivileged users on systems where Apparmor or SELinux (Security-Enhanced Linux) are enabled.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 2417548, 2423028, 2423029, 2423030, 2423031, 2423032    
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Description OSIDB Bzimport 2025-12-02 18:01:49 UTC 
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.