CVE-2026-82273 — Mastra Memory API Thread Ownership Check Is a No-op When mapUserToResourceId Is Unset
Mastra through 1.63.0 contains an authentication bypass vulnerability in the memory API thread ownership validation when mapUserToResourceId callback is omitted from configurati…
Published: 2026-08-28 · CVSS: 7.1 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7