# Mattermost Fails to Lockout LDAP Users After Repeated Login Failures in github.com/mattermost/mattermost-server

Advisory record · `GHSA-qgwx-rffp-6cx9`

- **Identifiers:** `GHSA-qgwx-rffp-6cx9` · `CVE-2025-31947` · `GO-2025-3692`
- **State:** Confirmed
- **Severity:** CVSS 5.8 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-645](https://cwe.mitre.org/data/definitions/645.html)
- **Tags:** [CWE-645](https://agentprime.io/advisories/tag/cwe-645.md)
- **Published:** 23 May 2025
- **Updated:** 3 Mar 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 23 May 2025, 15:17 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `github.com/mattermost/mattermost-server` (Go): affected `>=9.11.0+incompatible, <9.11.12+incompatible || >=10.4.0+incompatible, <10.4.5+incompatible || >=10.5.0+incompatible, <10.5.3+incompatible || >=10.6.0+incompatible, <10.6.2+incompatible`; fixed in `9.11.12+incompatible`, `10.4.5+incompatible`, `10.5.3+incompatible`, `10.6.2+incompatible`
- `github.com/mattermost/mattermost-server/v5` (Go): affected `all versions`; no fixed version yet
- `github.com/mattermost/mattermost-server/v6` (Go): affected `all versions`; no fixed version yet
- `github.com/mattermost/mattermost/server/v8` (Go): affected `<8.0.0-20250415054241-76ab3867b785`; fixed in `8.0.0-20250415054241-76ab3867b785`

## 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

- 5.8 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L`, from CNA (Mattermost)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0035, the 28th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the GitHub Advisory Database, published 23 May 2025. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-qgwx-rffp-6cx9](https://github.com/advisories/GHSA-qgwx-rffp-6cx9)
- [OSV: GHSA-qgwx-rffp-6cx9](https://osv.dev/vulnerability/GHSA-qgwx-rffp-6cx9)
- <https://github.com/advisories/GHSA-qgwx-rffp-6cx9>
- <https://nvd.nist.gov/vuln/detail/CVE-2025-31947>
- <https://github.com/mattermost/mattermost/pull/30821>
- <https://mattermost.com/security-updates>

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-qgwx-rffp-6cx9>, 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-qgwx-rffp-6cx9/>. Everything for agents: <https://agentprime.io/llms.txt>.