Vulnerability in Phpseclib
CVE-2026-32935
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.
EPSS: 0.004 (30.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Phpseclib — versions >= 3.0.0, < 3.0.50, >= 0.1.1, < 1.0.27, < 1.0.27
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-32935?
- CVE-2026-32935 is a medium-severity vulnerability in Phpseclib, classified under CWE-208. CVSS score: 5.9/10. Published 2026-03-20.
- How severe is CVE-2026-32935?
- Medium severity. CVSS v3 base score is 5.9 out of 10.