CVE
CVE-2026-32935
phpseclib's AES-CBC unpadding susceptible to padding oracle timing attack
Impact
Those using AES in CBC mode may be susceptible to a padding oracle timing attack.
Patches
https://github.com/phpseclib/phpseclib/commit/ccc21aef71eb170e9bf819b167e67d1fd9e6e788
Workarounds
Use AES in CTR, CFB or OFB modes
References
https://github.com/phpseclib/phpseclib/commit/ccc21aef71eb170e9bf819b167e67d1fd9e6e788
Package Versions Affected
Package Version
patch Availability
No items found.
Automatically patch vulnerabilities without upgrading
Fix Without Upgrading
Detect compatible fix
Apply safe remediation
Fix with a single pull request
CVSS Version
Severity
Base Score
CVSS Version
Score Vector
C
H
U
8.2
-
4.0
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
-
C
H
U
-
Related Resources
No items found.
References
https://github.com/phpseclib/phpseclib/security/advisories/GHSA-94g3-g5v7-q4jg, https://nvd.nist.gov/vuln/detail/CVE-2026-32935, https://github.com/phpseclib/phpseclib/commit/ccc21aef71eb170e9bf819b167e67d1fd9e6e788, https://github.com/phpseclib/phpseclib
Basic Information
Ecosystem
