4.3 Medium

CVE-2026-117626 Jenkins 2.587 and earlier, LTS 2.580.1 and earlier improperly identifies file paths attempting path traversal in the…

Description

Jenkins 2.587 and earlier, LTS 2.580.1 and earlier improperly identifies file paths attempting path traversal in the file browser for workspaces and $JENKINS_HOME/userContent/, allowing attackers with Overall/Read permission to obtain the names, sizes, and last modification times of files in the $JENKINS_HOME, and attackers with Item/Workspace permission to obtain the names of jobs that have a workspace on the same agent.

CVSS 3.1 detail

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Exploitable remotely over the network, with an ordinary account and without any user action; the impact on data or service is limited.

Attack vector: Network
Attack complexity: Low
Privileges required: Low
Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: None
Availability: None

Affected products and versions

Product	Affected versions	Fixed in
Jenkins 2.588	earliest → < 2.588	2.588
Jenkins 2.580	earliest → < 2.580.2	2.580.2

References

Jenkins Security Advisory 2026-10-28 www.jenkins.io

Timeline

Published October 28, 2026
Last modified November 5, 2026

The 153 CVEs of Jenkins →

CVE-2026-117624 Jenkins 2.587 and earlier, LTS 2.580.1 and earlier does not consistently enforce the restriction on deserializing… 8.8 High CVE-2026-117625 A missing permission check in Jenkins 2.587 and earlier, LTS 2.580.1 and earlier allows attackers with Overall/Read… 4.3 Medium CVE-2026-117623 Jenkins 2.587 and earlier, LTS 2.580.1 and earlier does not escape the text shown in the tooltips of breadcrumb bar… 5.4 Medium CVE-2026-117621 Jenkins 2.587 and earlier, LTS 2.580.1 and earlier computes on the agent the URL of the link shown in the workspace… 6.1 Medium

Track this CVE