TI-2026-28964 Aliases CVE-2026-40149 GHSA-4wr3-f4p3-5wjh

PraisonAI has an Unauthenticated Allow-List Manipulation Bypasses Agent Tool Approval Safety Controls

HIGH 68CWE-396Published 2026-04-09 · Updated 2026-04-13

Key facts

Attack vector: Local
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: Low · High · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-306.

Summary

PraisonAI is a multi-agent teams system. Prior to 4.5.128, the gateway's /api/approval/allow-list endpoint permits unauthenticated modification of the tool approval allowlist when no auth_token is configured (the default). By adding dangerous tool names (e.g., shell_exec, file_write) to the allowlist, an attacker can cause the ExecApprovalManager to auto-approve all future agent invocations of those tools, bypassing the human-in-the-loop safety mechanism that the approval system is specifically designed to enforce. This vulnerability is fixed in 4.5.128.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00236 14th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed PraisonAI (MervinPraison): 4.5.128PraisonAI (PyPI): 4.5.128

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

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	before 4.5.128	4.5.128	Patch available	CNA
—	PraisonAI (PyPI)	before 4.5.128	4.5.128	Patch available	GHSA-4wr3-f4p3-5wjh

PraisonAI VendorMervinPraison Affected before 4.5.128 Fixed in 4.5.128 Patch available CNA
PraisonAI (PyPI) Vendor— Affected before 4.5.128 Fixed in 4.5.128 Patch available GHSA-4wr3-f4p3-5wjh

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:praison:praisonai::::::::	before 4.5.128	Vulnerable	MervinPraison

cpe:2.3:a:praison:praisonai:*:*:*:*:*:*:*:* Versions before 4.5.128 Vulnerable ·MervinPraison

Remediation

Fix · CNA PraisonAI (MervinPraison) Fixed in 4.5.128
Fix · GHSA-4wr3-f4p3-5wjh PraisonAI (PyPI) Fixed in 4.5.128 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-40149
2026-10-03 Alias added: GHSA-4wr3-f4p3-5wjh

References

Exploit 1

https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-4wr3-f4p3-5wjh

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-40149

Other 2

TI-2026-30083 Incomplete fix for CVE-2026-34935: Command Injection in MervinPraison/PraisonAI CVSS 3.1CRITICAL 9.8
TI-2026-29070 PraisonAI: Critical RCE via `type: job` workflow YAML CVSS 3.1CRITICAL 9.8
TI-2026-28940 PraisonAI has Server-Side Request Forgery via Unvalidated webhook_url in Jobs API CVSS 3.1CRITICAL 10.0
TI-2026-28768 PraisonAI Affected by Remote Code Execution via YAML Deserialization in Agent Definition Loading CVSS 3.1CRITICAL 9.8
TI-2026-27159 PraisonAI: OS Command Injection in MCPHandler.parse_mcp_command() CVSS 3.1CRITICAL 9.8
TI-2026-27158 PraisonAI: Second-Order SQL Injection in `get_all_user_threads` CVSS 3.1CRITICAL 9.8

See all 42 →

Sources

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