Quick answers
- Is CVE-2026-92141 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-92141 being exploited in the wild.
- How severe is CVE-2026-92141?
- Medium severity, with a CVSS score of 4.3, published 16 September 2026.
- Which products and versions are affected?
- Jenkins Keycloak Authentication Plugin 2.4.1 and earlier.
- Is there a fix for CVE-2026-92141?
- 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-2026-92141 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-92141?
- Check whether you run Jenkins Keycloak Authentication Plugin at an affected version. 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 vulnerability is an open redirect weakness in the post-login redirect mechanism of the Keycloak Authentication Plugin. The plugin does not properly validate or restrict the redirect URL parameter after a user successfully authenticates via Keycloak, allowing attackers to specify arbitrary destination URLs. An attacker can craft a specially crafted login URL and socially engineer users to click it; after authentication succeeds, the user is redirected to an attacker-controlled website where credentials or sensitive information can be harvested. The vulnerability affects versions 2.4.1 and earlier, and fixes are expected in subsequent releases.
Affected products
- Jenkins Keycloak Authentication Plugin 2.4.1 and earlier
Timeline
- 2026-09-16: disclosed
- 2026-09-16: advisory: Jenkins Security Advisory 2026-09-16