Is CVE-2026-103112 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-103112 being exploited in the wild.

How severe is CVE-2026-103112?

High severity, with a CVSS score of 7.5, published 5 November 2026.

Is there a fix for CVE-2026-103112?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-103112 attacked?

It is attacked over the network.

Am I affected by CVE-2026-103112?

Check whether you run Keycloak. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-103112: Keycloak authentication session handling race condition

CVE-2026-103112 · Severity: high · CVSS 7.5 · Published 2026-11-05

Keycloak is an identity and access management system that handles user authentication and authorization for enterprise applications. A flaw in how Keycloak manages authentication sessions allows an authenticated attacker to exploit a race condition during credential reset to take over another user's account, including changing their password and accessing their data. Successful exploitation requires difficult timing conditions and specific realm configurations.

Quick answers

Is CVE-2026-103112 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-103112 being exploited in the wild.
How severe is CVE-2026-103112?: High severity, with a CVSS score of 7.5, published 5 November 2026.
Which products and versions are affected?: Keycloak.
Is there a fix for CVE-2026-103112?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-103112 attacked?: It is attacked over the network.
Am I affected by CVE-2026-103112?: Check whether you run Keycloak. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The keycloak-services component fails to verify that an authenticator is valid for the current authentication flow when switching between standard authentication and reset credentials paths. An authenticated attacker can trigger a race condition during credential reset to associate their authentication state with another user's session, bypassing access controls. This is a CWE-362 concurrent execution vulnerability requiring low privilege, network access, but high attack complexity due to the race condition requirement.

Affected products

Keycloak

Timeline

2026-11-05: disclosed

References

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