CVE-2026-32935

EUVD-2026-13507
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.9 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 5%
Affected Products (NVD)
VendorProductVersion
phpseclibphpseclib
𝑥
< 1.0.27
phpseclibphpseclib
2.0.0 ≤
𝑥
< 2.0.52
phpseclibphpseclib
3.0.0 ≤
𝑥
< 3.0.50
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
php-phpseclib
bookworm
vulnerable
bookworm (security)
2.0.42-1+deb12u3
fixed
bullseye
vulnerable
bullseye (security)
vulnerable
sid
2.0.54-1
fixed
trixie
vulnerable
trixie (security)
2.0.48-3+deb13u1
fixed
php-phpseclib3
bookworm
vulnerable
bookworm (security)
3.0.19-1+deb12u4
fixed
sid
3.0.52-2
fixed
trixie
vulnerable
trixie (security)
3.0.43-2+deb13u1
fixed
phpseclib
bookworm
vulnerable
bookworm (security)
1.0.20-1+deb12u3
fixed
bullseye
vulnerable
bullseye (security)
1.0.19-3+deb11u3
fixed
sid
1.0.29-1
fixed
trixie
vulnerable
trixie (security)
1.0.23-6+deb13u1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
php-phpseclib
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
questing
needs-triage
resolute
needs-triage
xenial
needs-triage
php-phpseclib3
jammy
needs-triage
noble
needs-triage
questing
needs-triage
resolute
needs-triage
phpseclib
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
questing
needs-triage
resolute
needs-triage
xenial
needs-triage
Common Weakness Enumeration
References
https://github.com/phpseclib/phpseclib/commit/ccc21aef71eb170e9bf819b167e67d1fd9e6e788
https://github.com/phpseclib/phpseclib/security/advisories/GHSA-94g3-g5v7-q4jg