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CVE-2026-55531

praisonai

Description

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.

CVSS 6.5EPSS 0.247%Risk 0.66
View source
Published
2026-08-25 15:16:34
Affected versions
<4.6.58
Type
Library
Last modified
2026-08-25 17:17:30
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H