HIGHCVSS v3.1 8.8Vulnerability

CVE-2026-56840

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.

Properties

Severity
HIGH
Nvd fetched at
2026-10-23T14:24:59.572098+00:00
Cvss severity
HIGH
Cvss score
8.8
Retrieved at
2026-10-23T14:28:01+00:00
Score
8.8
Cvss version
3.1
Last source
NVD
Cve id
CVE-2026-56840
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
First seen by Signal
2026-10-23T14:28:01+00:00
Name
CVE-2026-56840
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published at
2026-10-23T12:18:15.510
Last modified
2026-10-23T12:18:15.627

Related Entities (1)

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CVE-2026-56840 (CVSS v3.1 8.8) — Ninja Signal Threat Intelligence | Ninja Signal