Name: CVE-2026-32935: Observable Timing Discrepancy
Creator: Rapid7
Published: 2026-03-20T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-32935, CVSS 5.9, EPSS 0.00436

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 Details

CVSS 4.0 Base Score: 8.2 (HIGH)
CVSS 4.0 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)
CVSS 3.1 Base Score: 5.9
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Alpine Linux	—	Upgrade cacti	Jun 19, 2026	Mar 20, 2026
Debian	—	Upgrade php-phpseclibUpgrade phpseclibUpgrade php-phpseclib3	Mar 31, 2026	Mar 31, 2026
Freebsd	—	Upgrade cacti	Jul 9, 2026	Jul 7, 2026
Ubuntu	—	Upgrade php-phpseclib (Ubuntu Pro)Upgrade php-seclib (Ubuntu Pro)Upgrade php-seclib	Sep 16, 2026	Sep 15, 2026

Prioritise with Active Threat Intelligence

With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.

Explore Intelligence Hub

MDR Buyer's Guide

Global Threat Landscape Report

Grow your business

CVSS Details

Covered by Rapid7

Prioritise with Active Threat Intelligence