High 7.5Published May 12, 2026

CVE-2026-44167phpseclib: CVE-2024-27355 mitigation bypass — OID amplification DoS in ASN1::decodeOID()

Updated under an hour ago (Oct 26, 2026, 6:40 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for phpseclib

Exploited in the last 30 days

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: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-400
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: May 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

phpseclib phpseclib phpseclib:phpseclib (from the name)	from 3.0.0, < 3.0.52; from 2.0.0, < 2.0.54; from 0.1.1, < 1.0.29	CNA record

References

References

https://github.com/phpseclib/phpseclib/security/advisories/GHSA-3qpq-r242-jqj7	x-refsource-confirm
https://github.com/phpseclib/phpseclib/commit/d53d2021bcb9f6a04d5d44ec99e6bbef219a71bc	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.