CVE-2026-91989 atomic-agents-stack before 1.1.0 Path Traversal via dashboard serve.py
Remote attackers can read arbitrary files outside the intended directory by exploiting path traversal in the dashboard HTTP server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-91989?
CVE-2026-91989 is a high-severity path traversal vulnerability in dep0we atomic-agents-stack, published on 15 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
atomic-agents-stack before 1.1.0 contains a path traversal vulnerability in the dashboard HTTP server that allows remote attackers to read arbitrary files by supplying directory traversal sequences in request paths. Attackers can bypass path containment checks by including '../' segments in requests to the DashboardHandler.do_GET endpoint to access files outside the intended agents_root directory.
Weakness: CWE-22
Which versions are affected by CVE-2026-91989?
2 open source packages ship an affected version, including atomic-agents-stack.
| Package | Affected | Fixed in |
|---|---|---|
atomic-agents-stack PyPI | All versions | 1.1.0 |
atomic-agents-stack PyPI | All versions | 1.1.0 |
How do I fix CVE-2026-91989?
Upgrade atomic-agents-stack to 1.1.0 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-91989 being exploited?
There is no known exploitation of CVE-2026-91989 in the wild and no public exploit code.
Sources
Also known as GHSA-p4ww-qqmg-mcg4, GHSA-rm43-82j9-r4mj.