Dashboard / CVE-2026-50012

CVE-2026-50012

MEDIUM
MEDIUM Priority: 0.07 BB Relevance: 56/100
Published: 2026-07-16 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: High
UI: None
S: Unchanged
C: None
I: Low
A: High

Description

Squid is a caching proxy for the Web. Prior to 7.6, due to an improper input validation bug in cache digest reply handling (peerDigestSwapInMask in src/peer_digest.cc), Squid is vulnerable to a heap-based buffer overflow: a cache digest's on-the-wire size may be larger than the mask_size declared within the digest, so a trusted peer sending a maliciously crafted reply to a cache_digest request message can trigger the overflow. This attack is limited to Squid instances compiled with the --enable-cache-digests option and configured with cache_peer entries. This issue is fixed in version 7.6.

Weakness Classification (2)

Affected Software (1)

VendorProductVersion
squid-cache squid < 7.6

References & Advisories (4)

Bug Bounty Relevance

56 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

5.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H

EPSS — Exploitation Probability

1.36%
Raw Score 0.013640
Percentile 71.7%
Date 2026-10-29

EPSS Trend

2026-10-29
0.01364
2026-10-28
0.01364

Intelligence Sources

nvd ref →

External Links