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CVE-2026-117621VulnerabilityPublished

Jenkins 2.587 and earlier, LTS 2.580.1 and earlier computes on the agent the URL of the link shown in the workspace

Source GCVE Database

0
Authoritative record:CVE-2026-117621· High

Not known to be exploited.

Data as of 28 Oct 2026, 19:57 UTC

Severity
High

Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Jenkins ProjectJenkinsAffected–Fixed in–

AI-suggested

Until an official fix is available, restrict access and control over Jenkins agent processes to trusted users only to reduce the risk of exploitation.

Description

A cross-site scripting (XSS) vulnerability exists in Jenkins versions 2.587 and earlier, including LTS 2.580.1 and earlier. The vulnerability arises because the URL of the link shown in the workspace browser for each file and directory is computed on the agent side, which can be exploited by attackers who control agent processes.

References

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