Vulnerability record · CVE-2026-82283 · published 28 August 2026

CVE-2026-82283: Insecure direct object reference vulnerability

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.

8.6 CVSS 4.0 High EPSS 0.30% · top 79.4% CWE-639 · Insecure direct object reference Deferred

8.6CVSS 4.0 base score

0.30%EPSS exploitation probability, 30 days

NoNot in CISA KEV

0Affected product versions listed by NVD

5References

23 Sep 2026Last modified by NVD

Description

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

Link	Tags
https://github.com/VoltAgent/voltagent
https://github.com/VoltAgent/voltagent/blob/44b4c8e4998ce56095b2f0e4eaf1a988f5e6d0de/packages/server-core/src/handlers/m
https://github.com/VoltAgent/voltagent/issues/1371
https://www.vulncheck.com/advisories/voltagent-memory-api-handlers-missing-ownership-checks
https://github.com/VoltAgent/voltagent/issues/1371

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.4CVE-2026-55255Langflow IDOR in responses endpoint allows cross-user flow executionLangflow before 1.9.1 has an insecure direct object reference in the /api/v1/responses endpoint. An authenticated attacker can supply another user's …KEVEPSS 0.89%analysed23 Jun 2026

Source: NIST National Vulnerability Database (record CVE-2026-82283), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.