MervinPraison PraisonAI up to 4.5.127 auth_token generic exception

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in MervinPraison PraisonAI up to 4.5.127. The affected element is an unknown function. Executing a manipulation of the argument auth_token can lead to generic exception. This vulnerability appears as CVE-2026-40149. The attack requires local access. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in MervinPraison PraisonAI up to 4.5.127. It has been declared as problematic. This vulnerability affects an unknown part. The manipulation of the argument auth_token with an unknown input leads to a generic exception vulnerability. The CWE definition for the vulnerability is CWE-396. Catching overly broad exceptions promotes complex error handling code that is more likely to contain security vulnerabilities. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability was named CVE-2026-40149 since 04/09/2026. The exploitation appears to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit.

Upgrading to version 4.5.128 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.9
CNA Vector (GitHub_M): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Generic exception
CWE: CWE-396
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: PraisonAI 4.5.128

Timelineinfo

04/09/2026 CVE reserved
04/10/2026 +1 days Advisory disclosed
04/10/2026 +0 days VulDB entry created
04/10/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-4wr3-f4p3-5wjh
Status: Confirmed

CVE: CVE-2026-40149 (🔒)
GCVE (CVE): GCVE-0-2026-40149
GCVE (VulDB): GCVE-100-356758

Entryinfo

Created: 04/10/2026 06:46
Changes: 04/10/2026 06:46 (64)
Complete: 🔍
Cache ID: 216::103

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