CVE-2026-123876 - Podman: containers-common: containers-common: default seccomp af_vsock/netlink_audit deny rules bypassable via 32-bit truncation

CVE-2026-123876 - Podman: containers-common: containers-common: default seccomp af_vsock/netlink_audit deny rules bypassable via 32-bit truncation

https://cvefeed.io/rssfeed/latest.atom / Fri, 11/06/2026 - 19:52
CVE ID :CVE-2026-123876
Published : Nov. 6, 2026, 5:38 p.m. | 20 minutes ago
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.
Severity: 4.4 | MEDIUM
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