# Session fixation vulnerability in Jenkins OpenId Connect Authentication Plugin

Advisory record · `GHSA-h23j-73ww-7594`

- **Identifiers:** `GHSA-h23j-73ww-7594` · `CVE-2024-52553`
- **State:** Confirmed
- **Severity:** CVSS 8.8 High
- **Critical:** No
- **Weakness (CWE):** [CWE-384](https://cwe.mitre.org/data/definitions/384.html) · [CWE-613](https://cwe.mitre.org/data/definitions/613.html)
- **Tags:** [Authentication bypass](https://agentprime.io/advisories/tag/auth-bypass.md)
- **Published:** 13 Nov 2024
- **Updated:** 14 Nov 2024
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 13 Nov 2024, 21:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `org.jenkins-ci.plugins:oic-auth` (Maven): affected `<4.421.v5422614eb`; fixed in `4.421.v5422614eb`

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> Jenkins OpenId Connect Authentication Plugin versions up to and including 4.418.vccc7061f5b_6d do not invalidate the previous session on login. An attacker can use social engineering to get a user to authenticate in a session the attacker already controls, which could give the attacker administrator access to Jenkins. Upgrade the plugin to version 4.421.v5422614eb.

Written 8 Nov 2026.

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 8.8 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`, from GitHub Advisory Database

- **CISA KEV:** Not listed.
- **EPSS:** 0.0066, the 52nd percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 15:13 UTC: First seen by agentprime
- 31 Oct 2026, 15:13 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-h23j-73ww-7594)

## Sources

- [GitHub Advisory Database: GHSA-h23j-73ww-7594](https://github.com/advisories/GHSA-h23j-73ww-7594)
- [OSV: GHSA-h23j-73ww-7594](https://osv.dev/vulnerability/GHSA-h23j-73ww-7594)
- <https://nvd.nist.gov/vuln/detail/CVE-2024-52553>
- <https://github.com/jenkinsci/oic-auth-plugin>
- <https://www.jenkins.io/security/advisory/2024-11-13/#SECURITY-3473>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-h23j-73ww-7594>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-h23j-73ww-7594/>. Everything for agents: <https://agentprime.io/llms.txt>.