PraisonAI: SkillTools Executes Scripts Without Path Containment Validation

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

8.1 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS

• CVE-2026-61443: 0.64% estimated exploitation activity in the next 30 days; percentile 50.71 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Summary SkillTools.runskillscript() accepts a scriptpath parameter and executes it via subprocess.run() without any path containment validation. While FileTools has validatepath() with traversal detection, SkillTools performs none. An LLM-directed call can execute arbitrary scripts from any filesystem location. The @requireapproval decorator can be bypassed via YAML approve: for high-risk tools. Details src/praisonai-agents/praisonaiagents/tools/skilltools.py (lines 69-119): By contrast, FileTools.validatepath() (src/praisonai-agents/praisonaiagents/tools/filetools.py, lines 42-78) properly validates that the resolved path stays within the working directory: SkillTools has no equivalent check. PoC Tested result: The script at /tmp/maliciousskill.sh executed successfully despite the working directory being set to a jail directory. The output confirms arbitrary script execution including whoami and hostname. No path containment check exists — the absolute path is accepted and executed…

Published by the source

8 Oct 2026, 16:49 UTC

Last modified by the source

15 Oct 2026, 14:55 UTC

Source last checked

26 Oct 2026, 13:55 UTC

1. Revision 3 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-c44f-37qr-gw3f

2. Revision 2 · amended · 24 Oct 2026

   Amended from osv record GHSA-c44f-37qr-gw3f

3. Revision 1 · created · 23 Oct 2026

   Published from ghsa record GHSA-c44f-37qr-gw3f

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# Patch Next advisory brief: CVE-2026-61443

Advisory: PraisonAI: SkillTools Executes Scripts Without Path Containment Validation
IDs: CVE-2026-61443, GHSA-c44f-37qr-gw3f
Record: https://patchnext.com/advisories/cve-2026-61443 (revision 3, source checked 26 Oct 2026, 13:55 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 8.1)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: praisonaiagents 1.6.78. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI praisonaiagents: affected <= 1.6.77; fixed in 1.6.78

## Suggested inspection (read-only)
- `python -m pip show praisonaiagents`: prints the installed version. Run with the environment that serves production active.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on praisonaiagents.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-c44f-37qr-gw3f (GitHub-reviewed advisory GHSA-c44f-37qr-gw3f lists affected ranges: PyPI praisonaiagents >=0 <=1.6.77)
- Verified: https://osv.dev/vulnerability/GHSA-c44f-37qr-gw3f (OSV record GHSA-c44f-37qr-gw3f lists affected ranges: PyPI praisonaiagents >=0 <1.6.78 (fixed))

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