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 3.1

6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS

1.5% chance of exploitation in the next 30 days; higher than 74% of CVEs (scores of 2026-10-25)

CWEs

CWE-125, CWE-1289

Published

2026-07-16

Modified

2026-10-24

Record from

the NVD, synced 2026-10-25

Affected

• squid-cache:squid

References

• https://github.com/squid-cache/squid/commit/865a131c7d557e68c965043d98c2eccae26deef8
• https://github.com/squid-cache/squid/pull/2408
• https://github.com/squid-cache/squid/pull/2409
• https://github.com/squid-cache/squid/releases/tag/SQUID_7_6
• https://github.com/squid-cache/squid/security/advisories/GHSA-8c37-pxjq-qwrg

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