CVE-2026-43916

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/identd-ng/pam_authnft/pull/10
https://github.com/identd-ng/pam_authnft/security/advisories/GHSA-5jj5-hm34-78vh

Configurations

No configuration.

History

26 Oct 2026, 18:10

Type	Values Removed	Values Added
Summary		(es) pam_authnft es un módulo de sesión PAM que vincula reglas de cortafuegos de nftables a sesiones autenticadas a través de inodos cgroupv2. Antes de la versión 0.2.0-alpha, una lectura excesiva del búfer de la pila en peer_lookup_tcp (src/peer_lookup.c:134, antes de la corrección) permitía que una respuesta NETLINK_SOCK_DIAG manipulada eludiera la comprobación del tamaño del mensaje, y luego desreferenciara más allá del final de la asignación. Esta vulnerabilidad está corregida en la versión 0.2.0-alpha.

Information

Published : 2026-05-12 14:17

Updated : 2026-10-26 18:10

NVD link : CVE-2026-43916

Mitre link : CVE-2026-43916

CVE.ORG link : CVE-2026-43916

JSON object : View

Products Affected

No product.

CWE

CWE-125

Out-of-bounds Read

CWE-191

Integer Underflow (Wrap or Wraparound)

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