CVE-2026-61436CWE-287

PraisonAI before 4.6.78 Missing Webhook Signature Verification

High · published July 15, 2026

CVSS v4.0
8.8
EPSS
0%
Percentile
22.3
In the wild
Unconfirmed
What it is

PraisonAI before 4.6.78 fails to verify Svix webhook signatures in AgentMail webhook mode, allowing unauthenticated attackers to forge message.received events. Attackers can send crafted JSON payloads to the webhook endpoint to invoke configured agents with arbitrary sender addresses and message content.

The record
Technical detail
CVSS v4.0
8.8 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
EPSS
0.00307 · 22.3th percentile
Weakness
CWE-287 · Improper Authentication
Published
2026-07-15T11:25Z
EPSS history
Timeline
  • 15 JUL 11:25Z
    PraisonAI before 4.6.78 Missing Webhook Signature Verification
    cvelistv5