CVE-2026-44167

phpseclib: CVE-2024-27355 mitigation bypass — OID amplification DoS in ASN1::decodeOID()

State: Published
Severity: 7.5 High
Published: May 12, 2026
Updated: May 14, 2026
Reserved: May 5, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	GitHub_M

Weaknesses

CWE-400 Uncontrolled Resource Consumption

Affected Products

Product	Versions
phpseclibphpseclib	>= 3.0.0, < 3.0.52Affected >= 2.0.0, < 2.0.54Affected >= 0.1.1, < 1.0.29Affected

References

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