high · CVSS v3 6.6 · CVSS v4 7.5

CVE-2026-123538

OpenAM before 16.1.4 does not verify that a signed SAML 1.x assertion or response was signed by the partner named as its…

Description

OpenAM before 16.1.4 does not verify that a signed SAML 1.x assertion or response was signed by the partner named as its issuer, accepting a signature from any certificate in OpenAM's keystore. An attacker holding such a private key, such as a trusted SAML 1.x partner, can forge assertions claiming another partner's issuer and sign in as that partner's users, including privileged ones.

Scores

Severity
high
CVSS v2
6.8
CVSS v3
6.6
CVSS v4
7.5
EPSS
—

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