CVE-2026-61436

Summary

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 Software

Weaknesses

• CWE-287: Improper Authentication

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: partial

Additional References

• https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-7c92-x8vg-4258

References

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

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