{"api_version":"1","generated_at":"2026-04-09T01:39:05+00:00","cve":"CVE-2026-39890","urls":{"html":"https://cve.report/CVE-2026-39890","api":"https://cve.report/api/cve/CVE-2026-39890.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-39890","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-39890"},"summary":{"title":"PraisonAI Affected by Remote Code Execution via YAML Deserialization in Agent Definition Loading","description":"PraisonAI is a multi-agent teams system. Prior to 4.5.115, the AgentService.loadAgentFromFile method uses the js-yaml library to parse YAML files without disabling dangerous tags (such as !!js/function and !!js/undefined). This allows an attacker to craft a malicious YAML file that, when parsed, executes arbitrary JavaScript code. An attacker can exploit this vulnerability by uploading a malicious agent definition file via the API endpoint, leading to remote code execution (RCE) on the server. 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Prior to 4.5.115, the AgentService.loadAgentFromFile method uses the js-yaml library to parse YAML files without disabling dangerous tags (such as !!js/function and !!js/undefined). This allows an attacker to craft a malicious YAML file that, when parsed, executes arbitrary JavaScript code. An attacker can exploit this vulnerability by uploading a malicious agent definition file via the API endpoint, leading to remote code execution (RCE) on the server. This vulnerability is fixed in 4.5.115.","Type":"Description","Title":"PraisonAI Affected by Remote Code Execution via YAML Deserializa"}]}}}