What is GHSA-94g3-g5v7-q4jg?

GHSA-94g3-g5v7-q4jg is a security advisory published by GitHub Security Advisories with High severity. phpseclib's AES-CBC unpadding susceptible to padding oracle timing attack

Which CVE IDs does GHSA-94g3-g5v7-q4jg cover?

GHSA-94g3-g5v7-q4jg covers the following CVE IDs: CVE-2026-32935. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

Which products are affected by GHSA-94g3-g5v7-q4jg?

GHSA-94g3-g5v7-q4jg affects 3 products, including: composer/phpseclib/phpseclib:\u003e= 3.0.0, \u003c= 3.0.49; composer/phpseclib/phpseclib:\u003e= 2.0.0, \u003c= 2.0.51; composer/phpseclib/phpseclib:\u003e= 0.1.1, \u003c= 1.0.26.

GHSA-94g3-g5v7-q4jgHigh

phpseclib's AES-CBC unpadding susceptible to padding oracle timing attack

Vendor

GitHub Security Advisories

Published

March 19, 2026

Last Modified

May 8, 2026

🔗 CVE IDs covered (1)

CVE-2026-32935 →

📋 Description

Impact

Those using AES in CBC mode may be susceptible to a padding oracle timing attack.

Patches

https://github.com/phpseclib/phpseclib/commit/ccc21aef71eb170e9bf819b167e67d1fd9e6e788

Workarounds

Use AES in CTR, CFB or OFB modes

References

https://github.com/phpseclib/phpseclib/commit/ccc21aef71eb170e9bf819b167e67d1fd9e6e788

🎯 Affected products3

composer/phpseclib/phpseclib:>= 3.0.0, <= 3.0.49
composer/phpseclib/phpseclib:>= 2.0.0, <= 2.0.51
composer/phpseclib/phpseclib:>= 0.1.1, <= 1.0.26

🔗 References (4)

https://github.com/phpseclib/phpseclib/security/advisories/GHSA-94g3-g5v7-q4jg
https://github.com/phpseclib/phpseclib/commit/ccc21aef71eb170e9bf819b167e67d1fd9e6e788
https://nvd.nist.gov/vuln/detail/CVE-2026-32935
https://github.com/advisories/GHSA-94g3-g5v7-q4jg