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TI-2026-58192 Aliases CVE-2026-84652GHSA-42rh-v5qm-8p5w

Session fixation in Jenkins

Priority LOW 32CWE-384Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Spoofing
Confidentiality · integrity · availability
High · High · None
Fix status
Partial Red Hat: 11 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-384.

Summary

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, Jenkins does not rotate the session when a user is authenticated via the "remember me" cookie, allowing attackers able to serve content on the same site as Jenkins to set a known session cookie in the victim's browser, which after the victim authenticates via the "remember me" cookie, grants the attacker access to Jenkins as that user.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00443 38th percentileScored 2026-11-07
Fix Partial Jenkins (Jenkins Project): 2.580, 2.568.3Red Hat: 11 advisoriesRed Hat: 11 fixed, 1 without a fix

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

VendorProductAffected versionsFixed inStatusSource
JenkinsJenkins—2.580, 2.568.3Patch availableCNA
  • Jenkins VendorJenkins Affected — Fixed in 2.580, 2.568.3 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*before 2.568.3VulnerableJenkins
cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*before 2.580VulnerableJenkins
  • cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:* Versions before 2.568.3 Vulnerable ·Jenkins
  • cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:* Versions before 2.580 Vulnerable ·Jenkins

Remediation

  • Fix · CNA Jenkins (Jenkins Project) Fixed in 2.580, 2.568.3

Red Hat 11 advisories

  • RHSA-2026:88159 Released 2026-10-22 · Red Hat rating Critical
    Release 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-2026:88158 Released 2026-10-22 · Red Hat rating Critical
    Release 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-2026:88157 Released 2026-10-22 · Red Hat rating Critical
    Release 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
Show 8 more Red Hat advisories
  • RHSA-2026:88156 Released 2026-10-22 · Red Hat rating Critical
    Release 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
  • RHSA-2026:88155 Released 2026-10-22 · Red Hat rating Critical
    Release of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.21 security update.
    • OpenShift Developer Tools and Services 4.21 registry.redhat.io/ocp-tools-4/jenkins-rhel9
  • RHSA-2026:88154 Released 2026-10-22 · Red Hat rating Critical
    Release of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.22 security update.
    • OpenShift Developer Tools and Services 4.22 registry.redhat.io/ocp-tools-4/jenkins-rhel9
  • RHSA-2026:88153 Released 2026-10-22 · Red Hat rating Critical
    Release 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-2026:88151 Released 2026-10-22 · Red Hat rating Critical
    Release 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-2026:88152 Released 2026-10-22 · Red Hat rating Critical
    Release 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-2026:88149 Released 2026-10-22 · Red Hat rating Critical
    Release 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
  • RHSA-2026:88150 Released 2026-10-22 · Red Hat rating Critical
    Release 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

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Jenkins — Jenkins Security Advisory 2026-09-02

    13 records Highest priority Priority MEDIUM 4 MEDIUM, 9 LOW

    Other records, highest priority first

    • TI-2026-58188 Cross-site scripting in JenkinsPriority MEDIUM 41
    • TI-2026-58187 Deserialization of untrusted data in JenkinsPriority MEDIUM 41
    • TI-2026-58185 Mass assignment in JenkinsPriority MEDIUM 41
    Show all 13 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
OpenShift Developer Tools and ServicesAffectedNo fix yet
OpenShift Developer Tools and Services 4.12Fixed RHSA-2026:88152
OpenShift Developer Tools and Services 4.13Fixed RHSA-2026:88149
OpenShift Developer Tools and Services 4.14Fixed RHSA-2026:88151
OpenShift Developer Tools and Services 4.15Fixed RHSA-2026:88150
OpenShift Developer Tools and Services 4.16Fixed RHSA-2026:88156
OpenShift Developer Tools and Services 4.17Fixed RHSA-2026:88159
OpenShift Developer Tools and Services 4.18Fixed RHSA-2026:88153
OpenShift Developer Tools and Services 4.19Fixed RHSA-2026:88158
OpenShift Developer Tools and Services 4.20Fixed RHSA-2026:88157
OpenShift Developer Tools and Services 4.21Fixed RHSA-2026:88155
OpenShift Developer Tools and Services 4.22Fixed RHSA-2026:88154
Not affected: 11 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
  • OpenShift Developer Tools and Services 4.21
  • OpenShift Developer Tools and Services 4.22

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-84652
  2. 2026-10-03 Alias added: GHSA-42rh-v5qm-8p5w
  3. 2026-10-23 Fix available: RHSA-2026:88149 · Red Hat
  4. 2026-10-23 Fix available: RHSA-2026:88152 · Red Hat
  5. 2026-10-23 Fix available: RHSA-2026:88150 · Red Hat
  6. 2026-10-23 Fix available: RHSA-2026:88156 · Red Hat
  7. 2026-10-23 Fix available: RHSA-2026:88153 · Red Hat
  8. 2026-10-23 Fix available: RHSA-2026:88154 · Red Hat
  9. 2026-10-23 Fix available: RHSA-2026:88157 · Red Hat
  10. 2026-10-23 Fix available: RHSA-2026:88155 · Red Hat
  11. 2026-10-23 Fix available: RHSA-2026:88151 · Red Hat
  12. 2026-10-23 Fix available: RHSA-2026:88158 · Red Hat
  13. 2026-10-23 Fix available: RHSA-2026:88159 · Red Hat
  14. 2026-10-23 Fix available: OpenShift Developer Tools and Services 4.12, OpenShift Developer Tools and Services 4.13, OpenShift Developer Tools and Services 4.14 +8 · Red Hat

References

Advisory 1

  • 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
See all 293 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences