CVE-2026-47729
Squid: Memory disclosure in FTP gateway
- State
- Published
- Severity
- 6.5 Medium
- Published
- Jul 16, 2026
- Updated
- Jul 17, 2026
- Reserved
- May 19, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | GitHub_M |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
squidsquid-cache |
|
References
- https://github.com/squid-cache/squid/security/advisories/GHSA-8c37-pxjq-qwrg
- https://github.com/squid-cache/squid/pull/2408
- https://github.com/squid-cache/squid/pull/2409
- https://github.com/squid-cache/squid/commit/865a131c7d557e68c965043d98c2eccae26deef8
- https://github.com/squid-cache/squid/releases/tag/SQUID_7_6
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