CVE-2026-55541 PraisonAI: `--api-key` flag on `praisonai serve` is not properly enforced
Unauthenticated attackers can invoke AI agents and access endpoints because the API key check is missing in PraisonAI serve commands.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-55541?
CVE-2026-55541 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. Prior to praisonai 4.6.58, praisonai serve agents and praisonai serve unified parse --api-key but _create_agents_app() and _create_unified_app() do not install a credential check. Unauthenticated callers can reach POST /agents and POST /api/v1/agents/{id}/invoke. This issue is fixed in version 4.6.58.
Weakness: CWE-862
Which versions are affected by CVE-2026-55541?
3 open source packages ship an affected version, including praisonai and PraisonAI.
| Package | Affected | Fixed in |
|---|---|---|
praisonai PyPI | All versions | 4.6.58 |
praisonai PyPI | All versions | 4.6.58 |
PraisonAI PyPI | All versions | 4.6.58 |
How do I fix CVE-2026-55541?
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-2026-55541 being exploited?
There is no known exploitation of CVE-2026-55541 in the wild and no public exploit code.
Sources
Also known as GHSA-pvxx-r596-f5qj, PYSEC-2026-3893.