Phpseclib · Phpseclib · CVE-2026-32935
**Name of the Vulnerable Software and Affected Versions**
phpseclib versions 1.0.26 and below
phpseclib versions 2.0.0 through 2.0.51
phpseclib versions 3.0.0 through 3.0.49
**Description**
phpseclib is a PHP secure communications library. Projects utilizing the affected versions are susceptible to a padding oracle timing attack when using AES in CBC mode. The issue has been addressed in versions 1.0.27, 2.0.52, and 3.0.50.
**Recommendations**
phpseclib versions 1.0.26 and below: Update to version 1.0.27 or later.
phpseclib versions 2.0.0 through 2.0.51: Update to version 2.0.52 or later.
phpseclib versions 3.0.0 through 3.0.49: Update to version 3.0.50 or later.
As an alternative, use AES in CTR, CFB, or OFB modes.