Fluid Attacks Database

Description

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.

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem	Component	Affected version	Patched versions
debian 11	php-phpseclib	=2.0.30-2 \|\| =2.0.30-2+deb11u1 \|\| =2.0.30-2+deb11u2 \|\| >=0 <2.0.30-2+deb11u3	2.0.30-2+deb11u3
debian 12	php-phpseclib	=2.0.42-1 \|\| =2.0.42-1+deb12u1 \|\| =2.0.42-1+deb12u2 \|\| >=0 <2.0.42-1+deb12u3	2.0.42-1+deb12u3
debian 13	php-phpseclib	=2.0.48-3 \|\| >=0 <2.0.48-3+deb13u1	2.0.48-3+deb13u1
debian 12	php-phpseclib3	=3.0.19-1 \|\| =3.0.19-1+deb12u1 \|\| =3.0.19-1+deb12u2 \|\| =3.0.19-1+deb12u3 \|\| >=0 <3.0.19-1+deb12u4	3.0.19-1+deb12u4
debian 11	phpseclib	=1.0.19-3 \|\| =1.0.19-3+deb11u1 \|\| =1.0.19-3+deb11u2 \|\| >=0 <1.0.19-3+deb11u3	1.0.19-3+deb11u3
debian 12	phpseclib	=1.0.20-1 \|\| =1.0.20-1+deb12u1 \|\| =1.0.20-1+deb12u2 \|\| >=0 <1.0.20-1+deb12u3	1.0.20-1+deb12u3
debian 13	phpseclib	=1.0.23-6 \|\| >=0 <1.0.23-6+deb13u1	1.0.23-6+deb13u1
packagist	phpseclib/phpseclib	>=3.0.0 <3.0.50 \|\| >=2.0.0 <2.0.52 \|\| >=0.1.1 <1.0.27	3.0.50, 2.0.52, 1.0.27
debian 13	php-phpseclib3	=3.0.43-2 \|\| >=0 <3.0.43-2+deb13u1	3.0.43-2+deb13u1
debian 14	php-phpseclib3	=3.0.43-2 \|\| =3.0.44-1 \|\| =3.0.44-2 \|\| =3.0.45-1 \|\| =3.0.46-1 \|\| =3.0.46-2 \|\| =3.0.47-1 \|\| =3.0.48-1 \|\| =3.0.49-1 \|\| >=0 <3.0.50-1	3.0.50-1

1-10 of 11

Aliases

1. CVE-2026-329352. NVD-2026-329353. OSV-DEBIAN-2026-329354. OSV-2026-329355. GHSA-94g3-g5v7-q4jg6. GCVE-2026-329357. SECURITY-TRACKER-CVE-2026-32935

References

1. https://github.com/phpseclib/phpseclib/security/advisories/GHSA-94g3-g5v7-q4jg2. https://github.com/phpseclib/phpseclib/commit/ccc21aef71eb170e9bf819b167e67d1fd9e6e788

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