CVE-2026-34953
CRITICALCVSS v3
9.1
CRITICAL
EPSS Score
—
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
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.
Technical Details
- CVSS v3 Vector
- 3.1
- Published
- 4/3/2026
- Last Modified
- 4/9/2026
Frequently Asked Questions
What is CVE-2026-34953?
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.
Is CVE-2026-34953 actively exploited?
Active exploitation of CVE-2026-34953 has not been confirmed. The EPSS score is N/A%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2026-34953?
CVE-2026-34953 has a CVSS v3 base score of 9.1 (CRITICAL severity), with vector string 3.1.
Is CVE-2026-34953 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.