Vulnerability Description
PraisonAI is a multi-agent teams system. From version 4.5.2 to before version 4.6.59, praisonai.bots.HTTPApproval renders pending tool approval arguments directly into the approval dashboard HTML. An attacker-controlled tool argument can inject JavaScript into that page. When a human opens the approval URL to inspect the risky tool request, the script runs in the dashboard origin and can POST to the same request's /approve/{request_id}/decide endpoint, causing HTTPApproval to return approved=True. This issue has been patched in version 4.6.59.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-63v4-w882-g4
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-63v4-w882-g4
FAQ
What is CVE-2026-56840?
CVE-2026-56840 is a vulnerability with a CVSS score of 8.8 (HIGH). PraisonAI is a multi-agent teams system. From version 4.5.2 to before version 4.6.59, praisonai.bots.HTTPApproval renders pending tool approval arguments directly into the approval dashboard HTML. An ...
How severe is CVE-2026-56840?
CVE-2026-56840 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-56840?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.