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CVE-2026-9087

—
CVSS 3.1
8.1 high
EPSS
<1%p24
Published
()
Modified
Description

A flaw was found in Keycloak. The cross-session verification proof is keyed only by (local userId, idpAlias) and is not bound to the upstream identity that was actually verified, so a second upstream account on the same IdP can consume it and get linked to the victim's local account.

Vendors
redhat
Products
build of keycloak
Weakness
CWE-639
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
NVD CVE.org GitHub PoCs EPSS (0.3%)

In the news

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