PatchTheCVECVE-2026-19019: A security flaw has been discovered in poco-ai poco-agent up to 0.5.4
CVE-2026-19019 is a medium-severity flaw (CVSS 4.8) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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 b
Why this priority
- Remotely exploitable, no login, no user action
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 4.8 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | High |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.5% (top 59%) |
| CISA exploited list | No |
| Weakness | CWE-459 |
| Published | 2026-08-06 |
| Last modified | 2026-10-23 |
Last updated 2026-10-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-19019?
No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.
Is CVE-2026-19019 being exploited?
CVE-2026-19019 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-19019 affect?
CVE-2026-19019 affects affected software. Severity is medium (CVSS 4.8). 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 re
How urgent is CVE-2026-19019?
Priority 32/100. Remotely exploitable, no login, no user action