6.1 Medium

CVE-2026-117622 Jenkins 2.587 and earlier, LTS 2.580.1 and earlier allows agents to send exceptions implementing the Stapler…

Description

Jenkins 2.587 and earlier, LTS 2.580.1 and earlier allows agents to send exceptions implementing the Stapler HttpResponse interface to the controller, resulting in a cross-site scripting (XSS) vulnerability exploitable by attackers in control of agent processes.

CVSS 3.1 detail

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

Exploitable remotely over the network, without an account and if a user takes an action; the impact on data or service is limited.

Attack vector: Network
Attack complexity: Low
Privileges required: None
Interaction: Required
Scope: Changed
Confidentiality: Low
Integrity: Low
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

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