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CVE PROGRAM SOURCE RECORD8.7 High

CVE-2026-43916

pam_authnft: Heap buffer overflow in NETLINK_SOCK_DIAG reply walker

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

identd-ng pam_authnft

  • < 0.2.0-alphaaffected

References