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CVE-2026-82273— Mastra Memory API Thread Ownership Check Is a No-op When mapUserToResourceId Is Unset

Quick assessment

Affected
mastra-ai mastra
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Mastra是Mastra组织开源的一个AI代理框架。 Mastra 1.63.0及之前版本存在授权问题漏洞，该漏洞源于配置中省略mapUserToResourceId回调时内存API线程所有权验证不充分，已认证攻击者可利用GET /api/memory/threads枚举所有线程，并读取其他资源所有者的对话历史和元数据。

CVSS 6.5 · Medium EPSS 0.54% · P45

Affected Version Matrix 1

VendorProduct Version RangeStatus
mastra-ai mastra ≤ 1.63.0 affected
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I. Basic Information for CVE-2026-82273

Vulnerability Information
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Vulnerability Title
Mastra Memory API Thread Ownership Check Is a No-op When mapUserToResourceId Is Unset
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Mastra 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mastra是Mastra组织开源的一个AI代理框架。 Mastra 1.63.0及之前版本存在授权问题漏洞，该漏洞源于配置中省略mapUserToResourceId回调时内存API线程所有权验证不充分，已认证攻击者可利用GET /api/memory/threads枚举所有线程，并读取其他资源所有者的对话历史和元数据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
mastra-ai mastra 0 ~ 1.63.0 -

II. Public POCs for CVE-2026-82273

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III. Intelligence Information for CVE-2026-82273

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Vendor Advisories for CVE-2026-82273 (2)

Security Blog Posts for CVE-2026-82273 (1)

Vendor Pages for CVE-2026-82273 (1)

IV. Related Vulnerabilities

Same product: mastra
Same vendor: mastra-ai
Same weakness: CWE-862