MEDIUM 4.4 NVD
CVE-2026-123876
A flaw was found in the default seccomp profile used by Podman via containers-common. Deny rules for AF_VSOCK and NETLINK_AUDIT compared socket arguments with u
A flaw was found in the default seccomp profile used by Podman via containers-common. Deny rules for AF_VSOCK and NETLINK_AUDIT compared socket arguments with unmasked 64-bit equality. Because the kernel truncates those int arguments to 32 bits, setting upper bits can bypass the deny rules.
References
- https://access.redhat.com/security/cve/CVE-2026-123876
- https://bugzilla.redhat.com/show_bug.cgi?id=2566536
- https://github.com/podman-container-tools/container-libs/issues/1248
- https://github.com/podman-container-tools/container-libs/pull/1249
- https://www.openwall.com/lists/oss-security/2026/10/27/3
This medium severity vulnerability with a CVSS score of 4.4 was published on 2026-11-06 via NVD.
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