{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-94484", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-09-21T17:25:42.292Z", "datePublished": "2026-10-02T15:26:48.417Z", "dateUpdated": "2026-10-02T15:26:48.417Z"}, "containers": {"cna": {"title": "Next.js: Cache poisoning in Next.js SSG/ISR rendering leads to cross-user content substitution and persistent denial of service", "problemTypes": [{"descriptions": [{"cweId": "CWE-524", "lang": "en", "description": "CWE-524: Use of Cache Containing Sensitive Information", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 6.3, "baseSeverity": "MEDIUM", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/vercel/next.js/security/advisories/GHSA-mcj8-r9mp-w47p", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/vercel/next.js/security/advisories/GHSA-mcj8-r9mp-w47p"}, {"name": "https://github.com/vercel/next.js/commit/52c94abdd2ea5f416f5e8353ea8a2edd3fe311b8", "tags": ["x_refsource_MISC"], "url": "https://github.com/vercel/next.js/commit/52c94abdd2ea5f416f5e8353ea8a2edd3fe311b8"}, {"name": "https://github.com/vercel/next.js/commit/719e4c67d6e92df60246f95e1d96e2dd60789a52", "tags": ["x_refsource_MISC"], "url": "https://github.com/vercel/next.js/commit/719e4c67d6e92df60246f95e1d96e2dd60789a52"}, {"name": "https://github.com/vercel/next.js/releases/tag/v15.5.27", "tags": ["x_refsource_MISC"], "url": "https://github.com/vercel/next.js/releases/tag/v15.5.27"}, {"name": "https://github.com/vercel/next.js/releases/tag/v16.3.8", "tags": ["x_refsource_MISC"], "url": "https://github.com/vercel/next.js/releases/tag/v16.3.8"}], "affected": [{"vendor": "vercel", "product": "next.js", "versions": [{"version": ">= 15.0.0, < 15.5.27", "status": "affected"}, {"version": ">= 16.0.0, < 16.3.8", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-02T15:26:48.417Z"}, "descriptions": [{"lang": "en", "value": "Next.js is a React framework for building full-stack web applications. From 15.0.0 until 15.5.27 and 16.3.8, applications with a root-level catch-all page and statically generated or Incremental Static Regeneration routes can use a shared response cache key that is insufficiently scoped to the source route. A single unauthenticated crafted request can poison that cache, causing cross-user content substitution or persistent denial of service until the poisoned entry is revalidated or replaced. This issue is fixed in versions 15.5.27 and 16.3.8."}], "source": {"advisory": "GHSA-mcj8-r9mp-w47p", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "next.js", "vendor": "vercel", "versions": [{"status": "affected", "version": ">= 15.0.0, < 15.5.27"}, {"status": "affected", "version": ">= 16.0.0, < 16.3.8"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Next.js is a React framework for building full-stack web applications. From 15.0.0 until 15.5.27 and 16.3.8, applications with a root-level catch-all page and statically generated or Incremental Static Regeneration routes can use a shared response cache key that is insufficiently scoped to the source route. A single unauthenticated crafted request can poison that cache, causing cross-user content substitution or persistent denial of service until the poisoned entry is revalidated or replaced. This issue is fixed in versions 15.5.27 and 16.3.8."}], "id": "CVE-2026-94484", "lastModified": "2026-10-02T16:16:51.627", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.3, "baseSeverity": "MEDIUM", "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:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/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": "LOW", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-10-02T16:16:51.627", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/vercel/next.js/commit/52c94abdd2ea5f416f5e8353ea8a2edd3fe311b8"}, {"source": "security-advisories@github.com", "url": "https://github.com/vercel/next.js/commit/719e4c67d6e92df60246f95e1d96e2dd60789a52"}, {"source": "security-advisories@github.com", "url": "https://github.com/vercel/next.js/releases/tag/v15.5.27"}, {"source": "security-advisories@github.com", "url": "https://github.com/vercel/next.js/releases/tag/v16.3.8"}, {"source": "security-advisories@github.com", "url": "https://github.com/vercel/next.js/security/advisories/GHSA-mcj8-r9mp-w47p"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-524"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[15.0.0,15.5.27)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[16.0.0,16.3.8)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "next.js", "source": "cna", "vendor": "vercel"}, "product": "next.js", "vendor": "vercel"}], "created": "2026-10-02T16:30:14.489486+00:00", "updated": "2026-10-02T17:15:08.339392+00:00", "vendors": ["vercel", "vercel$PRODUCT$next.js"]}