CVE-2026-75110

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Source
https://cve.org/CVERecord?id=CVE-2026-75110
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-75110.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-75110
Published
2026-08-17T20:36:04Z
Modified
2026-08-20T03:30:11Z
Severity
  • 9.3 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
MemOS Authentication Bypass via Unset INTERNAL_SERVICE_SECRET
Details

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.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-697"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75110.json"
}
References

Affected packages

Git / github.com/memtensor/memos

Affected ranges

Type
GIT
Repo
https://github.com/memtensor/memos
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
f4db521214c29337164ec788bafede7eab236c25
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.0.30"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

memos-local-plugin-v2.*
memos-local-plugin-v2.0.14-beta.1
v0.*
v0.1.12
v0.1.13
v0.2.0
v0.2.1
v0.2.2
v1.*
v1.0.0
v1.0.1
v1.1.0
v1.1.1
v1.1.3
v2.*
v2.0.0
v2.0.1
v2.0.10
v2.0.11
v2.0.12
v2.0.13
v2.0.15
v2.0.16
v2.0.17
v2.0.19
v2.0.2
v2.0.20
v2.0.22
v2.0.23
v2.0.24
v2.0.25
v2.0.27
v2.0.30
v2.0.4
v2.0.5
v2.0.6
v2.0.7
v2.0.8
v2.0.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-75110.json"