CVE-2026-32935
phpseclib's AES-CBC unpadding susceptible to padding oracle timing attack
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 8.2EPSS 0.4%KEV nãoPoC —Patch —
Lifecycle
20 Mar 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
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
Affected products
phpseclib · phpseclibWant to know if your infrastructure is exposed to this?
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