Description
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.
Published: 2026-10-30
Score: 8.7 High
EPSS: n/a
KEV: No
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Remediation

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History

Fri, 30 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
Description 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.
Title sniproxy through 0.7.0 NULL Pointer Dereference via resolv_cancel()
First Time appeared Sniproxy Project
Sniproxy Project sniproxy
Weaknesses CWE-476
CPEs cpe:2.3:a:sniproxy_project:sniproxy:*:*:*:*:*:*:*:*
Vendors & Products Sniproxy Project
Sniproxy Project sniproxy
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


Subscriptions

Sniproxy Project Sniproxy
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-30T17:19:53.212Z

Reserved: 2026-10-30T15:35:11.988Z

Link: CVE-2026-119760

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-10-30T18:17:26.650

Modified: 2026-10-30T19:23:25.493

Link: CVE-2026-119760

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-30T20:00:16Z

Weaknesses