{"id":"CVE-2026-82283","title":"VoltAgent through 2.1.20 fails to validate conversation ownership in memory API handlers, allowing authenticated users to access other users' conversations","summary":"VoltAgent through 2.1.20 fails to validate conversation ownership in memory API handlers, allowing authenticated users to access other users' conversations. Attackers can read, modify, and delete arbitrary conversations and messages by s…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","cwe":["CWE-639"],"published":"2026-08-28","updated":"2026-09-23","sourceUpdated":"2026-09-23T17:17:46.080","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-82283","references":[{"url":"https://github.com/VoltAgent/voltagent","label":"disclosure@vulncheck.com"},{"url":"https://github.com/VoltAgent/voltagent/blob/44b4c8e4998ce56095b2f0e4eaf1a988f5e6d0de/packages/server-core/src/handlers/memory.handlers.ts","label":"disclosure@vulncheck.com"},{"url":"https://github.com/VoltAgent/voltagent/issues/1371","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/voltagent-memory-api-handlers-missing-ownership-checks","label":"disclosure@vulncheck.com"},{"url":"https://github.com/VoltAgent/voltagent/issues/1371","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.00238,"epssPercentile":0.15171,"ingestedAt":"2026-09-23T17:28:14.816Z","slug":"CVE-2026-82283","body":"## Overview\n\nVoltAgent through 2.1.20 fails to validate conversation ownership in memory API handlers, allowing authenticated users to access other users' conversations. Attackers can read, modify, and delete arbitrary conversations and messages by supplying caller-controlled identifiers to memory endpoints.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}