CVE-2026-47729

Squid is a caching proxy for the Web. Prior to 7.6, due to an improper validation of syntactic correctness of input in the FTP gateway (src/clients/FtpGateway.cc), Squid is vulnerable to an out-of-bounds read: when a listing entry date in the TypeA or TypeB directory-listing formats is not followed by a filename, parsing was not restricted to the input buffer, so a trusted client accessing a misbehaving FTP server through Squid's gateway feature could read memory from random unrelated transactions. This issue is fixed in version 7.6.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/squid-cache/squid/commit/865a131c7d557e68c965043d98c2eccae26deef8	Patch
https://github.com/squid-cache/squid/pull/2408	Patch
https://github.com/squid-cache/squid/pull/2409	Patch
https://github.com/squid-cache/squid/releases/tag/SQUID_7_6	Release Notes
https://github.com/squid-cache/squid/security/advisories/GHSA-8c37-pxjq-qwrg	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-07-16 17:16

Updated : 2026-07-20 01:43

NVD link : CVE-2026-47729

Mitre link : CVE-2026-47729

CVE.ORG link : CVE-2026-47729

JSON object : View

Products Affected

squid-cache

squid

CWE

CWE-125

Out-of-bounds Read

CWE-1289

Improper Validation of Unsafe Equivalence in Input

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