CVE-2026-47729mediumCWE-125 CWE-1289

CVE-2026-47729: medium-severity vulnerability in squid-cache squid

Squid: Memory disclosure in FTP gateway

Published 16 Jul 2026 · Updated 17 Jul 2026

33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 6.5epss 2.4%

from disclosure to weapon0 days

Published on NVDJul 16

1st PoCJun 21

exploitation probability

2.4%top 16% of all CVEs

observed exploitation

nono source reports it

1 public exploit(s)

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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

squid-cache · squid

public PoCs found — 1

githubgithub.com/0xBlackash/CVE-2026-47729★ 5

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