CVE-2025-65105 Apptainer ineffective application of selinux and apparmor --security options

What is CVE-2025-65105?

CVE-2025-65105 is a medium-severity vulnerability in apptainer, published on 2 Dec 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

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.

Weakness: CWE-706, CWE-61

Which versions are affected by CVE-2025-65105?

3 open source packages ship an affected version, including github.com/apptainer/apptainer. It affects 1 product.

Products include Lfprojects Apptainer.

How do I fix CVE-2025-65105?

Upgrade github.com/apptainer/apptainer to 1.4.5 or later.

Is CVE-2025-65105 being exploited?

There is no known exploitation of CVE-2025-65105 in the wild and no public exploit code.

Other vulnerabilities in apptainer

• CVE-2023-30549 Unpatched extfs vulnerabilities are exploitable through suid-mode Apptainer High 7.1
• CVE-2023-38496 Apptainer's ineffective privileges drop when requesting container network Medium 6.1

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-j3rw-fx6g-q46j, GO-2025-4176, UBUNTU-CVE-2025-65105.