CVE-2026-61436
PraisonAI before 4.6.78 Missing Webhook Signature Verification
- State
- Published
- Severity
- 8.8 High
- Published
- Jul 15, 2026
- Updated
- Jul 15, 2026
- Reserved
- Jul 9, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.8 High | 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 | VulnCheck |
| 3.1 | 8.6 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L | VulnCheck |
Weaknesses
- CWE-287 Improper Authentication
Affected Products
| Product | Versions |
|---|---|
PraisonAIMervinPraison |
|
References
- GitHub Security Advisory (GHSA-7c92-x8vg-4258)vendor-advisory
- https://github.com/MervinPraison/PraisonAI/commit/846568c7a5d8ce9e71e56e4c213f027c04909753patch
- https://github.com/MervinPraison/PraisonAI/commit/2a855c470077c7d2e2479a575f7ef7f548d51c33patch
- VulnCheck Advisory: PraisonAI before 4.6.78 Missing Webhook Signature Verificationthird-party-advisory
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