# Opencast has a partial path traversal vulnerability in UI config

Advisory record · `GHSA-hq8m-v68g-8cf8`

- **Identifiers:** `GHSA-hq8m-v68g-8cf8` · `CVE-2025-55202`
- **State:** Confirmed
- **Severity:** CVSS 2.7 Low
- **Critical:** No
- **Weakness (CWE):** [CWE-23](https://cwe.mitre.org/data/definitions/23.html)
- **Tags:** [Path traversal](https://agentprime.io/advisories/tag/path-traversal.md)
- **Published:** 29 Aug 2025
- **Updated:** 29 Aug 2025
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 29 Aug 2025, 15:34 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `org.opencastproject:opencast-user-interface-configuration` (Maven): affected `<17.7 || >=18.0, <18.1`; fixed in `17.7`, `18.1`

## Machine-written summary

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

> Opencast's UI configuration module (org.opencastproject:opencast-user-interface-configuration) is affected in versions before 17.7 and from 18.0 up to but not including 18.1. A path traversal check does not account for the file separator, so an attacker may be able to read files in a sibling folder whose name starts with the UI config directory name, such as ui-config-hidden next to ui-config, if Opencast can read them. Upgrade to version 17.7 or 18.1. As a mitigation, check whether any folders share the ui-config name prefix.

Written 7 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

- 2.7 Low, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0040, the 34th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 15:10 UTC: First seen by agentprime
- 31 Oct 2026, 15:10 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-hq8m-v68g-8cf8)

## Sources

- [GitHub Advisory Database: GHSA-hq8m-v68g-8cf8](https://github.com/advisories/GHSA-hq8m-v68g-8cf8)
- [OSV: GHSA-hq8m-v68g-8cf8](https://osv.dev/vulnerability/GHSA-hq8m-v68g-8cf8)
- <https://github.com/opencast/opencast/security/advisories/GHSA-hq8m-v68g-8cf8>
- <https://nvd.nist.gov/vuln/detail/CVE-2025-55202>
- <https://github.com/opencast/opencast/pull/6979>
- <https://github.com/opencast/opencast/commit/e2cc65d6fbe052ebb71d9f6b583bb54b181af009>
- <https://github.com/opencast/opencast>

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-hq8m-v68g-8cf8>, 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-hq8m-v68g-8cf8/>. Everything for agents: <https://agentprime.io/llms.txt>.