# CVE-2026-67547: taOS: Authenticated Non-Admin Host Code Execution via Skill Runtime

Status: published. Published: 2026-11-11. Updated: 2026-11-11.

taOS is a self-hosted AI agent OS. Prior to version 1.0.0-beta.23, the POST /api/skill-exec/{skill_id}/call endpoint in taOS executes built-in skills — including the code_exec skill which runs arbitrary Python via subprocess.run(["python3", "-c", code]) — without performing any admin role check, skill ownership check, or agent assignment verification. Any authenticated non-admin user can supply attacker-controlled Python code in the request body and have it executed as the taOS backend process user on the host, achieving full remote code execution with no privilege escalation required beyond a valid (non-admin) session. This issue has been patched in version 1.0.0-beta.23.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- jaylfc / taOS: < 1.0.0-beta.23 (affected). Source: CNA: GitHub_M

## Severity and prioritization

- CVSS 3.1: 8.8 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H; source: CNA: GitHub_M

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-862

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/jaylfc/taOS/security/advisories/GHSA-h24f-gp4c-8qjm (CNA: GitHub_M; x_refsource_CONFIRM)

- https://github.com/jaylfc/taOS/commit/8998d85190424d5e843880b4ca256e79b653a304 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/jaylfc/taOS/releases/tag/v1.0.0-beta.23 (CNA: GitHub_M; x_refsource_MISC)

## Provenance

- CNA: GitHub_M: https://www.cve.org/CVERecord?id=CVE-2026-67547; retrieved 2026-11-11; source updated 2026-11-11

Revision: 2def66a20d79482e2a963d1ea5f5fdaa735b24cb2048d5324b150bce1ac54c34

Canonical: https://y2.dev/cve/CVE-2026-67547

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