CVE-2026-57122

HighCVSS 8.6/10Last modified Sep 15, 2026

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.

Metrics

CVSS 3.1 8.6/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L

Weakness enumeration

CWE-345CWE-347

Affected software

VendorProductVersions
MervinPraisonPraisonAI< 4.6.59

References

Timeline

Published
Sep 14, 2026
Last modified
Sep 15, 2026
NVD status
Deferred

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CVE-2026-57122: High severity, CVSS 8.6 | Vulnix