NULL Pointer Dereference Affecting sniproxy package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.48% (42nd percentile)

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  • Snyk IDSNYK-DEBIAN13-SNIPROXY-22085221
  • published31 Oct 2026
  • disclosed30 Oct 2026

Introduced: 30 Oct 2026

NewCVE-2026-119760  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

There is no fixed version for Debian:13 sniproxy.

NVD Description

Note: Versions mentioned in the description apply only to the upstream sniproxy package and not the sniproxy package as distributed by Debian. See How to fix? for Debian:13 relevant fixed versions and status.

sniproxy through 0.7.0 contains a NULL pointer dereference vulnerability in resolv_cancel() that allows remote unauthenticated attackers to crash the daemon by sending overlong hostnames. Attackers can send a 254 or 255 character TLS SNI name or HTTP Host header matching a wildcard backend, then close the connection to terminate the proxy.

CVSS Base Scores

version 3.1