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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation poc

Automatable no

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
VoltAgent voltagent unaffected
Version Status Constraints
0 affected ≤ 2.1.20

No data.

No data.

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No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/VoltAgent/voltagent cve-icon cve-icon
https://github.com/VoltAgent/voltagent/blob/44b4c8e4998ce56095b2f0e4eaf1a988f5e6d0de/packages/server-core/src/handlers/memory.handlers.ts cve-icon cve-icon
https://github.com/VoltAgent/voltagent/issues/1371 cve-icon cve-icon cve-icon
https://www.vulncheck.com/advisories/voltagent-memory-api-handlers-missing-ownership-checks cve-icon cve-icon
History

Fri, 28 Aug 2026 22:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Fri, 28 Aug 2026 19:45:00 +0000

Type Values Removed Values Added
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.
Title VoltAgent Memory API Handlers Missing Ownership Checks
Weaknesses CWE-639
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 8.6, 'vector': '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-28T20:27:20.972Z

Reserved: 2026-08-28T11:12:51.621Z

Link: CVE-2026-82283

cve-icon Vulnrichment

Updated: 2026-08-28T20:27:16.820Z

cve-icon NVD

Status : Received

Published: 2026-08-28T20:20:19.683

Modified: 2026-08-28T22:16:56.530

Link: CVE-2026-82283

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-28T22:15:04Z

Weaknesses