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CVE-2026-47729

Squid: Memory disclosure in FTP gateway

Published: Jul 16, 2026Updated: Jul 20, 2026 Sources: CVE List NVDCWE-125
6.5MEDIUM
NVD MITRE
EPSS Score
1.5%
Top 28.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-125CWE-1289

Affected Products

squid-cache
oss-projectaka squid cache, squid
squidOn-premNetwork Device
Networking Infrastructure / load-balancer-proxy

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://github.com/squid-cache/squid/security/advisories/GHSA-8c37-pxjq-qwrg
github.com
https://github.com/squid-cache/squid/pull/2408
github.com
https://github.com/squid-cache/squid/pull/2409
github.com
and 2 more references View all →
News mentions
7

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