VULNERABILITY INTELLIGENCE
CVE-2026-82273
CVSS score6.5 MEDIUM
EPSS probability0.54%
CISA KEVNot currently listed
Published2026-08-28
Last modified2026-09-23
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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.
Weakness classification
- disclosure@vulncheck.com: CWE-862