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CVE PROGRAM SOURCE RECORD7.1 High

CVE-2026-82273

Mastra Memory API Thread Ownership Check Is a No-op When mapUserToResourceId Is Unset

Description

Mastra through 1.63.0 contains an authentication bypass vulnerability in the memory API thread ownership validation when mapUserToResourceId callback is omitted from configuration. Authenticated attackers can enumerate all threads via GET /api/memory/threads and read conversation history and metadata of other resource owners.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

mastra-ai mastra

Default version status: unaffected

  • 0 to ≤ 1.63.0affected

References