CVE-2026-57122
Deferred Deferred - Pending Action

Authentication Bypass in PraisonAI via Unsigned Webhooks

Publication date: 2026-09-14

Last updated on: 2026-09-14

Assigner: GitHub, Inc.

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 Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-09-14
Last Modified
2026-09-14
Generated
2026-09-15
AI Q&A
2026-09-14
EPSS Evaluated
N/A
NVD
CVE-2026-57122
EUVD
EUVD-2026-77599

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
praisonai praisonai to 4.6.59 (inc)
mervinpraison praisonai 4.6.59

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-347 The product does not verify, or incorrectly verifies, the cryptographic signature for data.
CWE-345 The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability affects PraisonAI's WhatsApp and Linear bot adapters. When the secret key for webhook verification is not set, the system skips signature checks and processes all incoming requests as legitimate. This allows remote attackers to forge messages, comments, or events without authentication.

Detection Guidance

Check if PraisonAI is running a vulnerable version (below 4.6.59) by inspecting the version in logs or package files. Monitor webhook endpoints for unexpected payloads or unauthorized events. Use network traffic analysis to detect unsigned requests to WhatsApp or Linear bot webhooks.

Impact Analysis

An attacker could impersonate users, inject malicious prompts or commands, disrupt bot operations, or manipulate agent actions. This could lead to unauthorized data access, incorrect processing, or system misuse.

Compliance Impact

This vulnerability could violate compliance by enabling unauthorized data access or manipulation, potentially breaching confidentiality requirements in GDPR and HIPAA. It undermines integrity controls for data processing.

Mitigation Strategies

Upgrade PraisonAI to version 4.6.59 or later. Ensure WHATSAPP_APP_SECRET and LINEAR_WEBHOOK_SECRET are set with strong values. Configure webhook endpoints to reject unsigned requests. Restart adapters only after secrets are properly configured.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-57122. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart