Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Squid-Cache | Squid | < 7.6 |
Related Weaknesses (CWE)
References
- https://github.com/squid-cache/squid/commit/865a131c7d557e68c965043d98c2eccae26dPatch
- https://github.com/squid-cache/squid/pull/2408Patch
- https://github.com/squid-cache/squid/pull/2409Patch
- https://github.com/squid-cache/squid/releases/tag/SQUID_7_6Release Notes
- https://github.com/squid-cache/squid/security/advisories/GHSA-8c37-pxjq-qwrgVendor Advisory
FAQ
What is CVE-2026-47729?
CVE-2026-47729 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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-bou...
How severe is CVE-2026-47729?
CVE-2026-47729 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-47729?
Check the references section above for vendor advisories and patch information. Affected products include: Squid-Cache Squid.