Vulnerability · Published Aug 25, 2026 · Assigned by GitHub_M

CVE-2026-55538PraisonAI: [Auth Bypass] `praisonai serve agents --api-key` is silently ignored — agent-invocation routes (`POST /agents`, `POST /agents/{agent_name}`) run unauthenticated

High 7.3

In plain English

A high-severity missing authentication in PraisonAI from MervinPraison. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.3High

Exploit odds (30 days)0.4%top 60.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.51, praisonai serve agents parses config["api_key"] but _create_agents_app() does not authenticate POST /agents or POST /agents/{agent_name}. Missing or incorrect bearer and X-API-Key values still reach agent execution. This issue is fixed in version 4.6.58.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
PyPI	praisonai	4.6.58	GHSA-r7v3-x45f-g7hp
PyPI	praisonai	4.6.58	PYSEC-2026-3894

Affected products (as reported)

Vendor	Product	Versions
MervinPraison	PraisonAI	< 4.6.58

Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References

https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-r7v3-x45f-g7hp x_refsource_CONFIRM
https://github.com/MervinPraison/PraisonAI/commit/2f9677abb2ea68eab864ee8b6a828fd0141612e1 x_refsource_MISC
https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.58 x_refsource_MISC