CVE-2026-55534 PraisonAI serve agents --api-key is ignored, allowing unauthenticated remote agent execution
Attackers can execute remote agents without credentials because the API key is ignored, affecting users of the PraisonAI library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-55534?
CVE-2026-55534 is a high-severity missing authorization vulnerability in MervinPraison PraisonAI, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
PraisonAI is a multi-agent teams system. From praisonai 4.6.34 until 4.6.58, praisonai serve agents accepts --api-key but _create_agents_app() does not authenticate POST /agents or POST /agents/{agent_name}. A network caller can invoke configured agents without credentials even when an API key was supplied. This issue is fixed in version 4.6.58.
Weakness: CWE-306
Which versions are affected by CVE-2026-55534?
3 open source packages ship an affected version, including praisonai and PraisonAI.
| Package | Affected | Fixed in |
|---|---|---|
praisonai PyPI | From 4.6.34 | 4.6.58 |
praisonai PyPI | From 4.6.34 | 4.6.58 |
PraisonAI PyPI | From 4.6.34 | 4.6.58 |
How do I fix CVE-2026-55534?
Upgrade praisonai to 4.6.58 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-55534 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55534 exists.
Sources
Also known as GHSA-7ww9-85pg-cv4x, PYSEC-2026-3887.