Resource Exhaustion Affecting php-phpseclib package, versions <2.0.23-2ubuntu0.1~esm3


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.34% (25th percentile)

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  • Snyk IDSNYK-UBUNTU2004-PHPPHPSECLIB-16699720
  • published25 Sept 2026
  • disclosed12 May 2026

Introduced: 12 May 2026

CVE-2026-44167  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 php-phpseclib to version 2.0.23-2ubuntu0.1~esm3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php-phpseclib package and not the php-phpseclib package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

phpseclib is a PHP secure communications library. Prior to 1.0.29, 2.0.54, and 3.0.52, anyone loading untrusted ASN1 files (eg. X509 certificates, RSA PKCS8 private or public keys, etc). This is a bypass of CVE-2024-27355. This vulnerability is fixed in 1.0.29, 2.0.54, and 3.0.52.