USN-8830-1: phpseclib vulnerabilities
Ubuntu fixes three phpseclib flaws covering AES timing leaks, SSH MAC comparison, and ASN.1 denial of service.
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CVE-2026-32935
- CVSS 4.0
- 8.2 high
- EPSS
- <1%p31
- Published
- ·
- Modified
Description · NVD
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.
- Vendors
- phpseclib
- Products
- phpseclib
- Weakness
- CWE-208
- 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/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