CVE-2026-82283CWE-639

CVE-2026-82283

High · published August 29, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
21.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
8.6 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00303 · 21.9th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-08-29T00:20Z
References (5)
https://github.com/VoltAgent/voltagent · [email protected]https://github.com/VoltAgent/voltagent/blob/44b4c8e4998ce56095b2f0e4eaf1a988f5e6d0de/packages/server-core/src/handlers/memory.handlers.ts · [email protected]https://github.com/VoltAgent/voltagent/issues/1371 · [email protected]https://www.vulncheck.com/advisories/voltagent-memory-api-handlers-missing-ownership-checks · [email protected]https://github.com/VoltAgent/voltagent/issues/1371 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 30 AUG 16:19Z
    EPSS moved — → 0%
    epss
  • 28 AUG 16:19Z
    VoltAgent Memory API Handlers Missing Ownership Checks
    cvelistv5