CVE-2026-82968

6.4 mediumEPSS 0.3%

Medium (6.4). EPSS 0.3% chance of exploitation in the next 30 days.

A flaw was found in the first-broker-login flow of the Keycloak identity management service. When a user links a social identity provider account to their local account, the verification proof generated is not strictly bound to the specific upstream identity being verified. This allows an attacker with a different account on the same social provider to intercept the process and link their own account to the victim's local profile, gaining unauthorized access.

Severity

CVSS 3.1

6.4 medium

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 20% of CVEs (scores of 2026-10-31)
CWE: CWE-639
Published: 2026-09-02
Modified: 2026-09-03
Record from: the NVD, synced 2026-10-19

References

https://access.redhat.com/security/cve/CVE-2026-82968
https://bugzilla.redhat.com/show_bug.cgi?id=2526318

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