CVE-2026-82968 Auth bypass in Red Hat Build of Keycloak
Attackers can hijack user accounts by intercepting social identity linking, allowing unauthorized access to victim profiles in Keycloak.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-82968?
CVE-2026-82968 is a medium-severity authentication bypass vulnerability in Red Hat Build of Keycloak, published on 2 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-639
Which versions are affected by CVE-2026-82968?
How do I fix CVE-2026-82968?
No fix has been published for CVE-2026-82968 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-82968 being exploited?
There is no known exploitation of CVE-2026-82968 in the wild and no public exploit code.
Sources
Also known as GHSA-2w6p-j7xq-6p7v.