PT-2026-70090 · Unknown · Picketlink

CVE-2026-15556

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Published

2026-08-11

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Updated

2026-08-24

CVSS v3.1

8.1

High

VectorAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Name of the Vulnerable Software and Affected Versions Picketlink (affected versions not specified)
Description A flaw exists in the Service Provider (SP) signature validation. An attacker can forge a SAML response containing zero assertion elements that match the signature check, enabling them to authenticate as any principal with any assigned roles on the protected application.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Verification of Cryptographic Signature

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Weakness Enumeration

Related Identifiers

CVE-2026-15556
RHSA-2026:53644

Affected Products

Picketlink