Description
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.
References5
- github.com/MervinPraison/PraisonAI/commit/2a855c470077c7d2e2479…
- github.com/MervinPraison/PraisonAI/commit/846568c7a5d8ce9e71e56…
- github.com/MervinPraison/PraisonAI/security/advisories/GHSA-7c9…
- www.vulncheck.com/advisories/praisonai-before-missing-webhook-s…
- github.com/MervinPraison/PraisonAI/security/advisories/GHSA-7c9…
Metrics
- CVSS 3.1
-
8.6
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L - CVSS 4.0
-
8.8
HIGH
Score source: CNA
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — exploit probability
- 0% percentile: 34 · as of 15 November 2026
- CWE
- CWE-287
Could this be exploited in your environment?
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