CVE-2026-61436: PraisonAI — HIGH

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...

Full CISO analysis pending enrichment.

What systems are affected?

Package	Ecosystem	Vulnerable Range	Patched
PraisonAI	pip	—	No patch
1 dependents 68% patched ~0d to patch Full package profile →

Do you use PraisonAI? You're affected.

How severe is it?

CVSS 3.1

8.6 / 10

EPSS

N/A

Exploitation Status

No known exploitation

Sophistication

N/A

What is the attack surface?

AV Network

AC Low

PR None

UI None

S Unchanged

C Low

I High

A Low

What should I do?

No patch available

Monitor for updates. Consider compensating controls or temporary mitigations.

Which compliance frameworks are affected?

Compliance analysis pending. Sign in for full compliance mapping when available.

Frequently Asked Questions

What is CVE-2026-61436?

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.

Is CVE-2026-61436 actively exploited?

No confirmed active exploitation of CVE-2026-61436 has been reported, but organizations should still patch proactively.

How to fix CVE-2026-61436?

No patch is currently available. Monitor vendor advisories for updates.

What is the CVSS score for CVE-2026-61436?

CVE-2026-61436 has a CVSS v3.1 base score of 8.6 (HIGH).

What are the technical details?

Original Advisory

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.

Weaknesses (CWE)

CWE-287 Improper Authentication CWE-287 Improper Authentication

CWE-287 — Improper Authentication: When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.