CVE-2026-61436 PraisonAI before 4.6.78 Missing Webhook Signature Verification
Attackers can forge webhook events to invoke AI agents with arbitrary content due to missing signature verification in PraisonAI.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-61436?
CVE-2026-61436 is a high-severity missing authorization vulnerability in MervinPraison PraisonAI, published on 15 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-287
Which versions are affected by CVE-2026-61436?
3 open source packages ship an affected version, including praisonai.
| Package | Affected | Fixed in |
|---|---|---|
praisonai PyPI | All versions | 4.6.78 |
praisonai PyPI | All versions | 4.6.78 |
praisonai PyPI | All versions | 4.6.78 |
How do I fix CVE-2026-61436?
Upgrade praisonai to 4.6.78 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-61436 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-61436 exists.
Sources
Also known as CVE-2026-62172, GHSA-7c92-x8vg-4258, PYSEC-2026-4252.