VulnerabilityDeferred
CVE-2026-55531
PraisonAI is a multi-agent teams system.
MEDIUM 6.5EPSS 0.25%
Does this matter?
Lower severity and a low EPSS score (0.25%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 0.25% probability · 16th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400, CWE-770
- Source
- security-advisories@github.com
References
- https://github.com/MervinPraison/PraisonAI/commit/2f9677abb2ea68eab864ee8b6a828fd0141612e1
- https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.58
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-wv94-5qcp-6m36
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-wv94-5qcp-6m36
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.