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HIGHCVE-2026-32935Published Modified CNA GitHub_M

CVE-2026-32935: phpseclib's AES-CBC unpadding susceptible to padding oracle timing attack

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.

Metrics

CVSS v4.0
8.2
Severity
HIGH
Fixed in
—
Affected Products
1
Affected packages
  • phpseclib / phpseclib
    >= 3.0.0, < 3.0.50 · >= 2.0.0, < 2.0.52 · >= 0.1.1, < 1.0.27
CVSS Vector
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
References
CVE-2026-32935: phpseclib's AES-CBC unpadding susceptible to padding oracle timing attack | HarborGuard CVE