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CVE-2026-32935GHSA-94G3-G5V7-Q4JG

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

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 3.0.50, 2.0.52, 1.0.27
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

phpseclib is a PHP secure communications library. Projects using versions 0.1.1 through 1.0.26, 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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • phpseclib phpseclib

    From 3.0.0 · fixed in 3.0.50; From 2.0.0 · fixed in 2.0.52; From 0.1.1 · fixed in 1.0.27

  • phpseclib/phpseclibPackagist

    From 3.0.0 · fixed in 3.0.50

  • phpseclib/phpseclibPackagist

    From 2.0.0 · fixed in 2.0.52

  • phpseclib/phpseclibPackagist

    From 0.1.1 · fixed in 1.0.27

References 2

GitHub · phpseclib/phpseclib