CVEvulnerability
CVE-2026-55531
6.5 MEDIUM
Official page ↗
- Status
- Deferred
- Published
- 2026-08-25
- Last modified
- 2026-09-09
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-400, CWE-770
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.
Related
References
- https://github.com/MervinPraison/PraisonAI/commit/2f9677abb2ea68eab864ee8b6a828fd0141612e1 github.com
- https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.58 github.com
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-wv94-5qcp-6m36 github.com
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-wv94-5qcp-6m36 github.com