What’s Vulnerable › Vulnerabilities

CVE-2026-61436: PraisonAI before 4.6.78 Missing Webhook Signature Verification

• Severity: high (CVSS 8.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-15 · updated 2026-10-24
• Weakness: CWE-287

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.

Affected products

• MervinPraison PraisonAI: before 4.6.78 — fixed in 4.6.78

How to fix

Upgrade to a fixed version: MervinPraison PraisonAI 4.6.78. Check the vendor advisory for mitigations.

References

• https://github.com/MervinPraison/PraisonAI/commit/2a855c470077c7d2e2479a575f7ef7f548d51c33
• https://github.com/MervinPraison/PraisonAI/commit/846568c7a5d8ce9e71e56e4c213f027c04909753
• https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-7c92-x8vg-4258
• https://www.vulncheck.com/advisories/praisonai-before-missing-webhook-signature-verification
• https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-7c92-x8vg-4258

Get alerted when CVE-2026-61436 or the next vulnerability affects your stack