CVE-2026-123876
4.4 MEDIUMpublic exploit availablePublished 2026-11-06 · Updated 2026-11-10
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Weaknesses
CWE-184
Public exploit & PoC references
All 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
- https://github.com/podman-container-tools/container-libs/issues/1248
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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