CVE-2026-32935

HIGH8.2

phpseclib's AES-CBC unpadding susceptible to padding oracle timing attack

Published Mar 20, 2026

Modified 1 months ago

Details

phpseclib is a PHP secure communications library. Projects using versions 1.0.26 and below, 2.0.0 through 2.0.51, and 3.0.0 through 3.0.49 are vulnerable to a to padding oracle timing attack when using AES in CBC mode. This issue has been fixed in versions 1.0.27, 2.0.52 and 3.0.50.

References

WEB

https://github.com/phpseclib/phpseclib/commit/ccc21aef71eb170e9bf819b167e67d1fd9e6e788

WEB

https://github.com/phpseclib/phpseclib/security/advisories/GHSA-94g3-g5v7-q4jg

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-32935

CVSS Analysis

CVSS v4.0

8.2

Exploitability

Attack Vector