What is CVE-2026-18092?

CVE-2026-18092 is a high-severity vulnerability in Timlegge Net::saml2, classified under Improper Verification of Cryptographic Signature. CVSS score: 8.1/10. Published 2026-08-03.

How severe is CVE-2026-18092?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Timlegge Net::saml2

CVE-2026-18092

Net::SAML2 versions before 0.86 for Perl allow SAML authentication bypass via XML signature wrapping because new_from_xml reads assertion identity with document-wide XPath instead of the signed subtree. new_from_xml reads the NameID, attr…

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H.

Affected products

Timlegge Net::saml2 — versions 0

Weakness classification (CWE)

CWE-347 — Improper Verification of Cryptographic Signature

References

9b29abf9-4ab0-4765-b253-1875cd9b441e (release-notes)
9b29abf9-4ab0-4765-b253-1875cd9b441e (patch)

Frequently asked questions

What is CVE-2026-18092?: CVE-2026-18092 is a high-severity vulnerability in Timlegge Net::saml2, classified under Improper Verification of Cryptographic Signature. CVSS score: 8.1/10. Published 2026-08-03.
How severe is CVE-2026-18092?: High severity. CVSS v3 base score is 8.1 out of 10.