Jenkins 2.540 and earlier, LTS 2.528.2 and earlier does not properly close HTTP-based CLI…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-404.
Summary
Jenkins 2.540 and earlier, LTS 2.528.2 and earlier does not properly close HTTP-based CLI connections when the connection stream becomes corrupted, allowing unauthenticated attackers to cause a denial of service.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- 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 | — | 2.541, 2.528.3 | Patch available | CNA |
| — | org.jenkins-ci.main:jenkins-core (Maven) | 2.529 to before 2.541 | 2.541 | Patch available | GHSA-9p56-p6mw-w8qc |
| — | org.jenkins-ci.main:cli (Maven) | 2.529 to before 2.541 | 2.541 | Patch available | GHSA-9p56-p6mw-w8qc |
| — | org.jenkins-ci.main:jenkins-core (Maven) | before 2.528.3 | 2.528.3 | Patch available | GHSA-9p56-p6mw-w8qc |
| — | org.jenkins-ci.main:cli (Maven) | before 2.528.3 | 2.528.3 | Patch available | GHSA-9p56-p6mw-w8qc |
- Jenkins VendorJenkins Affected — Fixed in 2.541, 2.528.3 Patch available CNA
- org.jenkins-ci.main:jenkins-core (Maven) Vendor— Affected 2.529 to before 2.541 Fixed in 2.541 Patch available GHSA-9p56-p6mw-w8qc
- org.jenkins-ci.main:cli (Maven) Vendor— Affected 2.529 to before 2.541 Fixed in 2.541 Patch available GHSA-9p56-p6mw-w8qc
- org.jenkins-ci.main:jenkins-core (Maven) Vendor— Affected before 2.528.3 Fixed in 2.528.3 Patch available GHSA-9p56-p6mw-w8qc
- org.jenkins-ci.main:cli (Maven) Vendor— Affected before 2.528.3 Fixed in 2.528.3 Patch available GHSA-9p56-p6mw-w8qc
Remediation
- Fix · CNA Jenkins (Jenkins Project) Fixed in 2.541, 2.528.3
- Fix · GHSA-9p56-p6mw-w8qc org.jenkins-ci.main:jenkins-core (Maven) Fixed in 2.541 Advisory →
- Fix · GHSA-9p56-p6mw-w8qc org.jenkins-ci.main:cli (Maven) Fixed in 2.541 Advisory →
- Fix · GHSA-9p56-p6mw-w8qc org.jenkins-ci.main:jenkins-core (Maven) Fixed in 2.528.3 Advisory →
- Fix · GHSA-9p56-p6mw-w8qc org.jenkins-ci.main:cli (Maven) Fixed in 2.528.3 Advisory →
Red Hat 9 advisories
- RHSA-2025:23491 Released 2025-12-17 · Red Hat rating ModerateRelease of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.20 security update.
- OpenShift Developer Tools and Services 4.20 registry.redhat.io/ocp-tools-4/jenkins-rhel9
- RHSA-2025:23492 Released 2025-12-17 · Red Hat rating ModerateRelease of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.18 security update.
- OpenShift Developer Tools and Services 4.18 registry.redhat.io/ocp-tools-4/jenkins-rhel9
- RHSA-2025:23490 Released 2025-12-17 · Red Hat rating ModerateRelease of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.16 security update.
- OpenShift Developer Tools and Services 4.16 registry.redhat.io/ocp-tools-4/jenkins-rhel9
Show 6 more Red Hat advisories
- RHSA-2025:23488 Released 2025-12-17 · Red Hat rating ModerateRelease of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.19 security update.
- OpenShift Developer Tools and Services 4.19 registry.redhat.io/ocp-tools-4/jenkins-rhel9
- RHSA-2025:23489 Released 2025-12-17 · Red Hat rating ModerateRelease of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.17 security update.
- OpenShift Developer Tools and Services 4.17 registry.redhat.io/ocp-tools-4/jenkins-rhel9
- RHSA-2025:23487 Released 2025-12-17 · Red Hat rating ModerateRelease of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.12 security update.
- OpenShift Developer Tools and Services 4.12 registry.redhat.io/ocp-tools-4/jenkins-rhel8
- RHSA-2025:23486 Released 2025-12-17 · Red Hat rating ModerateRelease of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.15 security update.
- OpenShift Developer Tools and Services 4.15 registry.redhat.io/ocp-tools-4/jenkins-rhel8
- RHSA-2025:23485 Released 2025-12-17 · Red Hat rating ModerateRelease of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.14 security update.
- OpenShift Developer Tools and Services 4.14 registry.redhat.io/ocp-tools-4/jenkins-rhel8
- RHSA-2025:23482 Released 2025-12-17 · Red Hat rating ModerateRelease of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.13 security update.
- OpenShift Developer Tools and Services 4.13 registry.redhat.io/ocp-tools-4/jenkins-rhel8
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Jenkins — Jenkins Security Advisory 2025-12-10
5 records Highest priority Priority MEDIUM 1 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2025-41379 Missing authorization in JenkinsPriority LOW 20
- TI-2025-41381 Cleartext storage of sensitive information in JenkinsPriority LOW 19
- TI-2025-41380 Cleartext storage of sensitive information in JenkinsPriority LOW 19
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| OpenShift Developer Tools and Services 4.12 | Fixed | RHSA-2025:23487 |
| OpenShift Developer Tools and Services 4.13 | Fixed | RHSA-2025:23482 |
| OpenShift Developer Tools and Services 4.14 | Fixed | RHSA-2025:23485 |
| OpenShift Developer Tools and Services 4.15 | Fixed | RHSA-2025:23486 |
| OpenShift Developer Tools and Services 4.16 | Fixed | RHSA-2025:23490 |
| OpenShift Developer Tools and Services 4.17 | Fixed | RHSA-2025:23489 |
| OpenShift Developer Tools and Services 4.18 | Fixed | RHSA-2025:23492 |
| OpenShift Developer Tools and Services 4.19 | Fixed | RHSA-2025:23488 |
| OpenShift Developer Tools and Services 4.20 | Fixed | RHSA-2025:23491 |
Not affected: 9 products
- OpenShift Developer Tools and Services 4.12
- OpenShift Developer Tools and Services 4.13
- OpenShift Developer Tools and Services 4.14
- OpenShift Developer Tools and Services 4.15
- OpenShift Developer Tools and Services 4.16
- OpenShift Developer Tools and Services 4.17
- OpenShift Developer Tools and Services 4.18
- OpenShift Developer Tools and Services 4.19
- OpenShift Developer Tools and Services 4.20
Timeline
- 2026-10-02 Threatist record created from CVE-2025-67635
- 2026-10-03 Alias added: GHSA-9p56-p6mw-w8qc
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-2025-67635 · CVE Program
- CVE-2025-67635 · NVD
- FIRST EPSS
- GHSA-9p56-p6mw-w8qc · GitHub Advisory Database · CC BY 4.0
- CVE-2025-67635 · 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