{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-76243", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-08-19T11:38:33.225Z", "datePublished": "2026-08-19T14:02:20.160Z", "dateUpdated": "2026-08-19T14:02:20.160Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-08-19T14:02:20.160Z"}, "datePublic": "2026-05-19T00:00:00.000Z", "title": "stigmem before 0.9.0a2 Authentication Bypass via Disabled Auth", "descriptions": [{"lang": "en", "value": "stigmem versions before 0.9.0a2 allow unauthenticated access when authentication is disabled on non-loopback deployments. Attackers can perform read, write, and federation operations with anonymous identity when nodes are exposed outside local development environments."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper Authorization", "cweId": "CWE-285", "type": "CWE"}]}], "affected": [{"vendor": "eidetic-labs", "product": "stigmem", "defaultStatus": "unaffected", "packageURL": "pkg:pypi/stigmem-node", "versions": [{"version": "0", "status": "affected", "versionType": "custom", "lessThan": "0.9.0a2"}, {"version": "0.9.0a2", "status": "unaffected", "versionType": "custom"}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 9.2, "baseSeverity": "CRITICAL"}}], "references": [{"url": "https://github.com/eidetic-labs/stigmem/security/advisories/GHSA-fp6w-8wpg-74g5", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-fp6w-8wpg-74g5)"}, {"name": "VulnCheck Advisory: stigmem before 0.9.0a2 Authentication Bypass via Disabled Auth", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/stigmem-before-0a2-authentication-bypass-via-disabled-auth"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageURL": "pkg:pypi/stigmem-node", "product": "stigmem", "vendor": "eidetic-labs", "versions": [{"lessThan": "0.9.0a2", "status": "affected", "version": "0", "versionType": "custom"}, {"status": "unaffected", "version": "0.9.0a2", "versionType": "custom"}]}], "source": "disclosure@vulncheck.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "stigmem versions before 0.9.0a2 allow unauthenticated access when authentication is disabled on non-loopback deployments. Attackers can perform read, write, and federation operations with anonymous identity when nodes are exposed outside local development environments."}], "id": "CVE-2026-76243", "lastModified": "2026-08-19T14:17:56.693", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 9.2, "baseSeverity": "CRITICAL", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}]}, "published": "2026-08-19T14:17:56.693", "references": [{"source": "disclosure@vulncheck.com", "url": "https://github.com/eidetic-labs/stigmem/security/advisories/GHSA-fp6w-8wpg-74g5"}, {"source": "disclosure@vulncheck.com", "url": "https://www.vulncheck.com/advisories/stigmem-before-0a2-authentication-bypass-via-disabled-auth"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-285"}], "source": "disclosure@vulncheck.com", "type": "Primary"}]}

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