Security Advisory

CVE-2026-43916

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-05-12 13:31:44

Last updated 2026-05-13 14:38:34

Assigner GitHub_M

CVSS score 8.7

State PUBLISHED

Description

pam_authnft is a PAM session module binding nftables firewall rules to authenticated sessions via cgroupv2 inodes. Prior to 0.2.0-alpha, a heap buffer over-read in peer_lookup_tcp (src/peer_lookup.c:134, prior to the fix) allowed a crafted NETLINK_SOCK_DIAG reply to slip past the message-size check, then dereference past the end of the allocation. This vulnerability is fixed in 0.2.0-alpha.

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