Vulnerability · Published Aug 28, 2026 · Assigned by VulnCheck
CVE-2026-82283VoltAgent Memory API Handlers Missing Ownership Checks
High 8.1
In plain English
A high-severity authorization bypass via user-controlled key in voltagent from VoltAgent. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.4%top 62.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
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 supplying caller-controlled identifiers to memory endpoints.
Affected products (as reported)
Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
References
- GitHub Issue #1371 issue-tracking
- https://github.com/VoltAgent/voltagent product
- Vulnerable code: memory.handlers.ts technical-description
- VulnCheck Advisory: VoltAgent Memory API Handlers Missing Ownership Checks third-party-advisory