Open redirect in Jenkins
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Partial Red Hat: 1 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-601.
Summary
Jenkins 2.567 and earlier, LTS 2.555.2 and earlier does not ensure that the "from" parameter in the "Delegate to servlet container" security realm is safe to redirect to after login, allowing attackers to perform phishing attacks by redirecting users to an attacker-controlled domain.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Jenkins | Jenkins | — | 2.568, 2.555.3 | Patch available | CNA |
| — | org.jenkins-ci.main:jenkins-core (Maven) | before 2.555.3 | 2.555.3 | Patch available | GHSA-92m7-4fpw-2wxm |
| — | org.jenkins-ci.main:jenkins-core (Maven) | 2.556 to before 2.568 | 2.568 | Patch available | GHSA-92m7-4fpw-2wxm |
- Jenkins VendorJenkins Affected — Fixed in 2.568, 2.555.3 Patch available CNA
- org.jenkins-ci.main:jenkins-core (Maven) Vendor— Affected before 2.555.3 Fixed in 2.555.3 Patch available GHSA-92m7-4fpw-2wxm
- org.jenkins-ci.main:jenkins-core (Maven) Vendor— Affected 2.556 to before 2.568 Fixed in 2.568 Patch available GHSA-92m7-4fpw-2wxm
Remediation
- Fix · CNA Jenkins (Jenkins Project) Fixed in 2.568, 2.555.3
- Fix · GHSA-92m7-4fpw-2wxm org.jenkins-ci.main:jenkins-core (Maven) Fixed in 2.555.3 Advisory →
- Fix · GHSA-92m7-4fpw-2wxm org.jenkins-ci.main:jenkins-core (Maven) Fixed in 2.568 Advisory →
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Jenkins — Jenkins Security Advisory 2026-06-10
8 records Highest priority Priority HIGH 1 HIGH, 7 LOW
Other records, highest priority first
- TI-2026-38517 Deserialization of untrusted data in JenkinsPriority HIGH 72
- TI-2026-38523 Cross-site scripting in JenkinsPriority LOW 24
- TI-2026-38524 Jenkins 2.567 and earlier, LTS 2.555.2 and earlier does not encrypt secrets from POST…Priority LOW 23
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| OpenShift Developer Tools and Services | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-53440
- 2026-10-03 Alias added: GHSA-92m7-4fpw-2wxm
References
More Jenkins vulnerabilities
- TI-2024-15885 Path traversal in Jenkins KEVCVSS 3.1CRITICAL 9.8
- TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8
- TI-2017-14573 Jenkins versions 2.56 and earlier as well as 2.46.1 LTS and earlier are vulnerable to an… KEVCVSS 3.1CRITICAL 9.8
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
- TI-2015-04472 The Fingerprints pages in Jenkins before 1.638 and LTS before 1.625.2 might allow remote… KEVCVSS 3.1HIGH 7.5
- TI-2016-07596 The remoting module in Jenkins before 2.32 and LTS before 2.19.3 allows remote attackers… CVSS 3.0CRITICAL 9.8
Sources
- CVE-2026-53440 · CVE Program
- CVE-2026-53440 · NVD
- FIRST EPSS
- GHSA-92m7-4fpw-2wxm · GitHub Advisory Database · CC BY 4.0
- CVE-2026-53440 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences