CVE-2026-57122: CWE-345: Insufficient Verification of Data Authenticity in MervinPraison PraisonAI
PraisonAI is a multi-agent teams system. Prior to 4.6.59, the WhatsApp and Linear bot webhook handlers verify HMAC signatures only when WHATSAPP_APP_SECRET or LINEAR_WEBHOOK_SECRET is configured and otherwise parse and dispatch unsigned request bodies. A remote unauthenticated client that reaches the webhook route can forge messages, comments, or agent-session events, impersonate platform users, influence agent prompts and actions, and disrupt bot processing. This issue is fixed in 4.6.59.
AI Analysis
Technical Summary
CVE-2026-57122 describes an insufficient verification of data authenticity vulnerability (CWE-345) in MervinPraison's PraisonAI multi-agent teams system. Before version 4.6.59, the webhook handlers for WhatsApp and Linear bots verify HMAC signatures only when WHATSAPP_APP_SECRET or LINEAR_WEBHOOK_SECRET environment variables are set. If these secrets are not configured, the webhook handlers accept and process unsigned request bodies. This allows remote unauthenticated clients who can reach the webhook endpoints to forge messages, comments, or agent-session events, impersonate platform users, manipulate agent prompts and actions, and disrupt bot processing. The vulnerability is fixed in version 4.6.59.
Potential Impact
An unauthenticated remote attacker can exploit this vulnerability to send forged webhook requests that appear legitimate. This can lead to impersonation of platform users, unauthorized influence over agent behavior, and disruption of bot processing. The confidentiality impact is low, integrity impact is high, and availability impact is low as per the CVSS vector. There are no known exploits in the wild at this time.
Mitigation Recommendations
Upgrade PraisonAI to version 4.6.59 or later, where the webhook handlers enforce HMAC signature verification regardless of secret configuration. Until the upgrade, ensure that WHATSAPP_APP_SECRET and LINEAR_WEBHOOK_SECRET are properly configured to enable signature verification. Patch status is confirmed fixed in 4.6.59.
CVE-2026-57122: CWE-345: Insufficient Verification of Data Authenticity in MervinPraison PraisonAI
Description
PraisonAI is a multi-agent teams system. Prior to 4.6.59, the WhatsApp and Linear bot webhook handlers verify HMAC signatures only when WHATSAPP_APP_SECRET or LINEAR_WEBHOOK_SECRET is configured and otherwise parse and dispatch unsigned request bodies. A remote unauthenticated client that reaches the webhook route can forge messages, comments, or agent-session events, impersonate platform users, influence agent prompts and actions, and disrupt bot processing. This issue is fixed in 4.6.59.
CVSS v3.1
Score 8.6high
Affected software
MervinPraison
PraisonAI
pkg:github/mervinpraison/PraisonAIRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-57122 describes an insufficient verification of data authenticity vulnerability (CWE-345) in MervinPraison's PraisonAI multi-agent teams system. Before version 4.6.59, the webhook handlers for WhatsApp and Linear bots verify HMAC signatures only when WHATSAPP_APP_SECRET or LINEAR_WEBHOOK_SECRET environment variables are set. If these secrets are not configured, the webhook handlers accept and process unsigned request bodies. This allows remote unauthenticated clients who can reach the webhook endpoints to forge messages, comments, or agent-session events, impersonate platform users, manipulate agent prompts and actions, and disrupt bot processing. The vulnerability is fixed in version 4.6.59.
Potential Impact
An unauthenticated remote attacker can exploit this vulnerability to send forged webhook requests that appear legitimate. This can lead to impersonation of platform users, unauthorized influence over agent behavior, and disruption of bot processing. The confidentiality impact is low, integrity impact is high, and availability impact is low as per the CVSS vector. There are no known exploits in the wild at this time.
Mitigation Recommendations
Upgrade PraisonAI to version 4.6.59 or later, where the webhook handlers enforce HMAC signature verification regardless of secret configuration. Until the upgrade, ensure that WHATSAPP_APP_SECRET and LINEAR_WEBHOOK_SECRET are properly configured to enable signature verification. Patch status is confirmed fixed in 4.6.59.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-24T00:33:17.707Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aa80fff55bf5e2cf53beb1b
Added to database: 09/14/2026, 15:17:19 UTC
Last enriched: 09/14/2026, 15:31:51 UTC
Last updated: 09/15/2026, 03:19:23 UTC
Views: 11
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