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        "cveId": "CVE-2026-75110",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-08-17T17:28:41.677Z",
        "datePublished": "2026-08-17T20:36:04.095Z",
        "dateUpdated": "2026-08-18T12:51:49.539Z"
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                "dateUpdated": "2026-08-18T11:18:06.218Z"
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            "datePublic": "2026-08-16T00:00:00.000Z",
            "title": "MemOS Authentication Bypass via Unset INTERNAL_SERVICE_SECRET",
            "descriptions": [
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                    "lang": "en",
                    "value": "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."
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            "problemTypes": [
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                            "lang": "en",
                            "description": "Incorrect Comparison",
                            "cweId": "CWE-697",
                            "type": "CWE"
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            "affected": [
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                    "vendor": "MemTensor",
                    "product": "MemOS",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:pypi/MemoryOS",
                    "versions": [
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                            "version": "0",
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                            "lessThanOrEqual": "2.0.30",
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                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
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                        "scope": "UNCHANGED",
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            "references": [
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                    "url": "https://github.com/MemTensor/MemOS/issues/2259",
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                                "timestamp": "2026-08-18T12:48:39.747053Z",
                                "id": "CVE-2026-75110",
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