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Vulnerability record · CVE-2026-44167 · published 12 May 2026

CVE-2026-44167: Uncontrolled resource consumption vulnerability

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.

7.5 CVSS 3.1 High EPSS 0.34% · top 75.4% CWE-400 · Uncontrolled resource consumption Deferred
7.5CVSS 3.1 base score
0.34%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

LinkTags
https://github.com/phpseclib/phpseclib/commit/d53d2021bcb9f6a04d5d44ec99e6bbef219a71bc
https://github.com/phpseclib/phpseclib/security/advisories/GHSA-3qpq-r242-jqj7

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Source: NIST National Vulnerability Database (record CVE-2026-44167), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.