CVE-2026-56840
HIGH
MEDIUM
Priority: 0.03
BB Relevance:
68/100
Published: 2026-10-23
Modified: 2026-10-29
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
No Auth
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
None
UI:
Required
S:
Unchanged
C:
High
I:
High
A:
High
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.
Weakness Classification (1)
Affected Software (2)
| Vendor | Product | Version |
|---|---|---|
| MervinPraison | PraisonAI | >= 4.5.2, < 4.6.59 |
| MervinPraison | PraisonAI | >= 4.5.2, < 4.6.59 |