CVE-2026-50012 (GCVE-0-2026-50012)

Vulnerability from cvelistv5 – Published: 2026-07-16 16:11 – Updated: 2026-07-17 14:04
VLAI
Title
Squid: Memory corruption in cache_digest reply handling
Summary
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-17 14:04 UTC
CWE
  • CWE-20 - Improper Input Validation
  • CWE-122 - Heap-based Buffer Overflow
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 8034 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
squid-cache squid Affected: < 7.6
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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