{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-126797", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-11-11T20:01:46.748Z", "datePublished": "2026-11-11T20:53:02.665Z", "dateUpdated": "2026-11-11T20:53:02.665Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-11-11T20:53:02.665Z"}, "datePublic": "2026-11-07T02:20:53.000Z", "title": "NextScan 1.1.0 through 1.2.0 Hardcoded JWT Key Authentication Bypass in ns-admin", "descriptions": [{"lang": "en", "value": "NextScan 1.1.0 through 1.2.0 contains an authentication bypass vulnerability in ns-admin that allows unauthenticated attackers to forge administrator tokens using a hardcoded JWT signing key. Attackers can sign an HS256 X-Access-Token carrying the public super administrator role ID to gain full access to user management, scan tasks and stored vulnerability results."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Use of Hard-coded Cryptographic Key", "cweId": "CWE-321", "type": "CWE"}]}], "affected": [{"vendor": "tongcheng-security-team", "product": "NextScan", "defaultStatus": "unaffected", "versions": [{"version": "1.1.0", "lessThanOrEqual": "1.2.0", "versionType": "semver", "status": "affected"}], "packageURL": "pkg:docker/lysec/ns-admin"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "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", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 9.3, "baseSeverity": "CRITICAL"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL"}}], "references": [{"url": "https://github.com/tongcheng-security-team/NextScan/issues/48", "tags": ["issue-tracking"]}, {"url": "https://github.com/tongcheng-security-team/NextScan/blob/v1.2.0/docker/docker-compose.yaml", "tags": ["product"]}, {"url": "https://hub.docker.com/r/lysec/ns-admin", "tags": ["product"]}, {"url": "https://vul.yulun.ac.cn/20261107/nextscan/", "tags": ["third-party-advisory"]}, {"name": "VulnCheck Advisory: NextScan 1.1.0 through 1.2.0 Hardcoded JWT Key Authentication Bypass in ns-admin", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/nextscan-1.1.0-through-1.2.0-hardcoded-jwt-key-authentication-bypass-in-ns-admin"}], "credits": [{"lang": "en", "value": "Wu Yulun", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageURL": "pkg:docker/lysec/ns-admin", "product": "NextScan", "vendor": "tongcheng-security-team", "versions": [{"lessThanOrEqual": "1.2.0", "status": "affected", "version": "1.1.0", "versionType": "semver"}]}], "source": "disclosure@vulncheck.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "NextScan 1.1.0 through 1.2.0 contains an authentication bypass vulnerability in ns-admin that allows unauthenticated attackers to forge administrator tokens using a hardcoded JWT signing key. Attackers can sign an HS256 X-Access-Token carrying the public super administrator role ID to gain full access to user management, scan tasks and stored vulnerability results."}], "id": "CVE-2026-126797", "lastModified": "2026-11-11T21:16:43.027", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "disclosure@vulncheck.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 9.3, "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:N/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": "2026-11-11T21:16:43.027", "references": [{"source": "disclosure@vulncheck.com", "url": "https://github.com/tongcheng-security-team/NextScan/blob/v1.2.0/docker/docker-compose.yaml"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/tongcheng-security-team/NextScan/issues/48"}, {"source": "disclosure@vulncheck.com", "url": "https://hub.docker.com/r/lysec/ns-admin"}, {"source": "disclosure@vulncheck.com", "url": "https://vul.yulun.ac.cn/20261107/nextscan/"}, {"source": "disclosure@vulncheck.com", "url": "https://www.vulncheck.com/advisories/nextscan-1.1.0-through-1.2.0-hardcoded-jwt-key-authentication-bypass-in-ns-admin"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-321"}], "source": "disclosure@vulncheck.com", "type": "Primary"}]}

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