CVE-2026-55531
Medium · 6.5CVSS
6.5
EPSS
0.5%
Published
Aug 25, 2026
CISA due date
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The record
PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, the MCP HTTP Stream mcp_post handler creates a new _sessions entry for every initialize request but does not call _cleanup_sessions or enforce a maximum. An unauthenticated caller can exhaust memory. The fix invokes cleanup and limits sessions through PRAISONAI_MCP_MAX_SESSIONS. This issue is fixed in version 4.6.58.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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