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CVE-2026-75110— MemOS Authentication Bypass via Unset INTERNAL_SERVICE_SECRET

Quick assessment

Affected
MemTensor MemOS
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenMem MemOS是OpenMem组织的一款融合机器学习能力的操作系统。 OpenMem MemOS 2.0.30及之前版本存在处理逻辑错误漏洞，该漏洞源于is_internal_request()函数对INTERNAL_SERVICE_SECRET环境变量验证不当，导致未设置时认证检查失效，未认证的远程攻击者可访问管理API密钥接口，创建、枚举、撤销API密钥并生成主密钥，从而获得持久特权访问权限及所有数据端点访问权限。

CVSS 9.8 · Critical EPSS 0.52% · P42

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts

Affected Version Matrix 1

VendorProduct Version RangeStatus
MemTensor MemOS ≤ 2.0.30 affected
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I. Basic Information for CVE-2026-75110

Vulnerability Information
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Vulnerability Title
MemOS Authentication Bypass via Unset INTERNAL_SERVICE_SECRET
Source: CVE Program / CVE List V5
Vulnerability Description
MemOS is a memory operating system for LLMs and AI agents. In deployments where authentication is enabled (AUTH_ENABLED=true) but the undocumented, defaultless INTERNAL_SERVICE_SECRET environment variable is unset, the is_internal_request() check in src/memos/api/middleware/auth.py fails open: os.getenv("INTERNAL_SERVICE_SECRET") returns None and a request omitting the X-Internal-Service header also yields None, so the comparison None == None evaluates true. The request is then treated as a trusted internal principal and granted scopes: ["all"]. As a result, an unauthenticated remote attacker can reach the admin API-key management endpoints to mint API keys for any user, enumerate keys, revoke keys, and generate a master key for persistent privileged access, as well as all data endpoints.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的比较
Source: CVE Program / CVE List V5
Vulnerability Title
OpenMem MemOS 处理逻辑错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenMem MemOS是OpenMem组织的一款融合机器学习能力的操作系统。 OpenMem MemOS 2.0.30及之前版本存在处理逻辑错误漏洞，该漏洞源于is_internal_request()函数对INTERNAL_SERVICE_SECRET环境变量验证不当，导致未设置时认证检查失效，未认证的远程攻击者可访问管理API密钥接口，创建、枚举、撤销API密钥并生成主密钥，从而获得持久特权访问权限及所有数据端点访问权限。
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
MemTensor MemOS 0 ~ 2.0.30 -

II. Public POCs for CVE-2026-75110

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 13331 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-75110

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Vendor Advisories for CVE-2026-75110 (1)

News Coverage for CVE-2026-75110 (1)

IV. Related Vulnerabilities

Same product: MemOS
Same weakness: CWE-697

V. Comments for CVE-2026-75110

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