Read the docs
TI-2026-15543 Aliases CVE-2026-19019GHSA-j255-r942-27q8

poco-ai poco-agent Claude File workspace.py WorkspaceManager._setup_session_persistence cleanup

Priority MEDIUM 61CWE-459Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00489 42nd percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
poco-aipoco-agent0.5.0; 0.5.1; 0.5.2; 0.5.3; 0.5.4—No fix listedCNA
  • poco-agent Vendorpoco-ai Affected 0.5.0; 0.5.1; 0.5.2; 0.5.3; 0.5.4 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:poco-ai:poco-agent:*:*:*:*:*:*:*:*———
  • cpe:2.3:a:poco-ai:poco-agent:*:*:*:*:*:*:*:* Versions — — ·—

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-19019
  2. 2026-10-03 Alias added: GHSA-j255-r942-27q8

References

Exploit 2

  • TI-2026-13409 poco-ai poco-claw task.py run_task server-side request forgery CVSS 4.0MEDIUM 6.9
  • TI-2026-13144 poco-ai poco-claw Workspace API workspace.py get_workspace_file authorization CVSS 4.0MEDIUM 6.9
  • TI-2026-13408 poco-ai poco-claw executor_manager API tasks.py create_task missing authentication CVSS 4.0MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences