CVE-2026-19019 poco-ai poco-agent Claude File workspace.py WorkspaceManager._setup_session_persistence cleanup
Incomplete session cleanup in poco-agent allows potential data leakage or state persistence issues, requiring complex remote exploitation.
- 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-2026-19019?
CVE-2026-19019 is a medium-severity vulnerability in poco-ai poco-agent, published on 6 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A security flaw has been discovered in poco-ai poco-agent up to 0.5.4. Affected is the function WorkspaceManager._setup_session_persistence of the file executor/app/core/workspace.py of the component Claude File Handler. The manipulation results in incomplete cleanup. The attack may be performed from remote. Attacks of this nature are highly complex. The exploitability is told to be difficult. The exploit has been released to the public and may be used for attacks.
Weakness: CWE-459
Which versions are affected by CVE-2026-19019?
How do I fix CVE-2026-19019?
No fix has been published for CVE-2026-19019 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-19019 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-19019 exists.
Sources
Also known as GHSA-j255-r942-27q8.