{"apiVersion":"1.0","identifier":"CVE-2026-55531","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.","publishedAt":"2026-08-25T15:16:34","lastModifiedAt":"2026-08-25T17:17:30","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-55531","cvssScore":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","epssProbability":0.00247,"riskScore":0.66,"affectedProduct":"praisonai","affectedVersions":"<4.6.58","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-55531","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-55531","en":"https://www.redsauce.net/en/cves/CVE-2026-55531","fr":"https://www.redsauce.net/fr/cves/CVE-2026-55531","pt":"https://www.redsauce.net/pt/cves/CVE-2026-55531","de":"https://www.redsauce.net/de/cves/CVE-2026-55531","sk":"https://www.redsauce.net/sk/cves/CVE-2026-55531","el":"https://www.redsauce.net/el/cves/CVE-2026-55531"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-55531"}}