Jenkins Keycloak Authentication Plugin 2.4.1 and earlier does not restrict the redirect URL after login, allowing attackers to perform phishing attacks.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00326.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Jenkins Project Jenkins Keycloak Authentication Plugin unaffected
Version Status Constraints
0 affected ≤ 2.4.1

No data.

No data.

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Vendors Products
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Project Subscriptions

Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.jenkins.io/security/advisory/2026-09-16/#SECURITY-3767 cve-icon cve-icon
History

Fri, 18 Sep 2026 05:15:00 +0000

Type Values Removed Values Added
Title Open Redirect in Jenkins Keycloak Authentication Plugin Enables Phishing

Thu, 17 Sep 2026 21:15:00 +0000

Type Values Removed Values Added
First Time appeared Jenkins Project
Jenkins Project jenkins Keycloak Authentication Plugin
Vendors & Products Jenkins Project
Jenkins Project jenkins Keycloak Authentication Plugin

Wed, 16 Sep 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-601
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 16 Sep 2026 14:00:00 +0000

Type Values Removed Values Added
Description Jenkins Keycloak Authentication Plugin 2.4.1 and earlier does not restrict the redirect URL after login, allowing attackers to perform phishing attacks.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: jenkins

Published:

Updated: 2026-09-16T18:33:08.864Z

Reserved: 2026-09-15T16:29:44.795Z

Link: CVE-2026-92141

cve-icon Vulnrichment

Updated: 2026-09-16T18:33:04.231Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-16T14:17:16.057

Modified: 2026-09-18T13:46:13.937

Link: CVE-2026-92141

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-18T05:00:04Z

Weaknesses