TI-2026-79616 Aliases CVE-2026-56840

Cross-site scripting in PraisonAI approval page enables tool approval

HIGH 73CWE-79Published 2026-10-23 · Updated 2026-10-29

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

PraisonAI from 4.5.2 before 4.6.59 renders pending tool approval arguments as raw HTML in the praisonai.bots.HTTPApproval approval dashboard. An attacker who controls a tool argument can inject JavaScript into that page (CWE-79). When a person opens the approval URL to review the request, the script runs in the dashboard origin and can approve the risky tool request without the reviewer's consent.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00375 31st percentileScored 2026-11-07

Fix Fixed PraisonAI (MervinPraison): 4.6.59praisonai (PyPI): 4.6.59

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
MervinPraison	PraisonAI	4.5.2 to before 4.6.59	4.6.59	Patch available	CNA
—	praisonai (PyPI)	4.5.2 to before 4.6.59	4.6.59	Patch available	GHSA-63v4-w882-g4x2

PraisonAI VendorMervinPraison Affected 4.5.2 to before 4.6.59 Fixed in 4.6.59 Patch available CNA
praisonai (PyPI) Vendor— Affected 4.5.2 to before 4.6.59 Fixed in 4.6.59 Patch available GHSA-63v4-w882-g4x2

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:praison:praisonai::::::::	—	—	MervinPraison

cpe:2.3:a:praison:praisonai:*:*:*:*:*:*:*:* Versions — — ·MervinPraison

Remediation

Upgrade the praisonai PyPI package to version 4.6.59, which fixes the issue. The sources list no fixed version for PraisonAI.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Fix · CNA PraisonAI (MervinPraison) Fixed in 4.6.59
Fix · GHSA-63v4-w882-g4x2 praisonai (PyPI) Fixed in 4.6.59 Advisory →

Timeline

2026-10-23 Threatist record created from CVE-2026-56840
2026-10-24 Priority changed: MEDIUM → LOW
2026-10-29 CISA SSVC decision points changed
2026-10-29 Priority changed: LOW → HIGH

References

Other 2

TI-2026-79619 Missing authentication in PraisonAI AgentOS exposes agent chat CVSS 3.1CRITICAL 9.8
TI-2026-71236 Missing access control in PraisonAI AgentTeam exposes agent endpoints CVSS 3.1CRITICAL 9.8
TI-2026-44052 PraisonAI before 1.6.78 Remote Code Execution via CodeAgent CVSS 4.0CRITICAL 10.0
TI-2026-41123 praisonai-platform 0.1.4 still boots on the hardcoded JWT secret dev-secret-change-me (default-open production guard) CVSS 3.1CRITICAL 9.8
TI-2026-41122 praisonai-platform: default JWT signing secret 'dev-secret-change-me' enables token forgery CVSS 3.1CRITICAL 9.8
TI-2026-41118 PraisonAI MCPServer exposes unauthenticated HTTP tools/call CVSS 3.1CRITICAL 9.8

See all 177 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences