CVE-2026-119760
HIGH
MEDIUM
Priority: 0.04
BB Relevance:
77/100
Published: 2026-10-30
Modified: 2026-10-30
First seen: 2026-10-30
Status: active
Attack Surface
Network
Low Complexity
No Auth
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
None
S:
X
AT:
None
VC:
None
VI:
None
VA:
High
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.
Weakness Classification (1)
Affected Software (1)
| Vendor | Product | Version |
|---|---|---|
| dlundquist | sniproxy | 0 |
References & Advisories (7)
third-party-advisory
technical-description
technical-description
product
patch
patch
issue-tracking