CVE-2026-34953

critical · 9.1

PraisonAI is a multi-agent teams system. Prior to version 4.5.97, OAuthManager.validate_token() returns True for any token not found in its internal store, which is empty by default. Any HTTP request to the MCP server with an arbitrary Bearer token is treated as authenticated, granting full access to all registered tools and agent capabilities. This issue has been patched in version 4.5.97.

9.1

CVSS

0.4%

EPSS (exploit prob.)

31st

EPSS percentile

2026-04-03

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weaknesses

CWE-863

Affected products

Vendor	Product	Affected versions
praison	praisonai	< 4.5.97

Check a specific version with /api/v1/cve/match.

References

https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-98f9-fqg5-hvq5
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-98f9-fqg5-hvq5

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-34953