CVE-2026-94484 (GCVE-0-2026-94484)

Vulnerability from cvelistv5 – Published: 2026-10-02 15:26 – Updated: 2026-10-02 15:26
VLAI
Title
Next.js: Cache poisoning in Next.js SSG/ISR rendering leads to cross-user content substitution and persistent denial of service
Summary
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.
Severity
6.3 (Medium)
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
CWE
  • CWE-524 - Use of Cache Containing Sensitive Information
Assigner
References
Impacted products
Vendor Product Version CPE status
vercel next.js Affected: >= 15.0.0, < 15.5.27
Affected: >= 16.0.0, < 16.3.8
guessed Create a notification for this product.
Show details on NVD website
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        }
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        "shortName": "GitHub_M"
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          "tags": [
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          "name": "https://github.com/vercel/next.js/commit/52c94abdd2ea5f416f5e8353ea8a2edd3fe311b8",
          "tags": [
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          "url": "https://github.com/vercel/next.js/commit/52c94abdd2ea5f416f5e8353ea8a2edd3fe311b8"
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        {
          "name": "https://github.com/vercel/next.js/commit/719e4c67d6e92df60246f95e1d96e2dd60789a52",
          "tags": [
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          "url": "https://github.com/vercel/next.js/commit/719e4c67d6e92df60246f95e1d96e2dd60789a52"
        },
        {
          "name": "https://github.com/vercel/next.js/releases/tag/v15.5.27",
          "tags": [
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          "url": "https://github.com/vercel/next.js/releases/tag/v16.3.8"
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        "discovery": "UNKNOWN"
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      "title": "Next.js: Cache poisoning in Next.js SSG/ISR rendering leads to cross-user content substitution and persistent denial of service"
    }
  },
  "cveMetadata": {
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    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-94484",
    "datePublished": "2026-10-02T15:26:48.417Z",
    "dateReserved": "2026-09-21T17:25:42.292Z",
    "dateUpdated": "2026-10-02T15:26:48.417Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
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          }
        ],
        "id": "CVE-2026-94484",
        "lastModified": "2026-10-02T17:55:42.580",
        "metrics": {
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              "cvssData": {
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                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
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                "attackRequirements": "PRESENT",
                "attackVector": "NETWORK",
                "availabilityRequirement": "NOT_DEFINED",
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                "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",
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                "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",
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          }
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        "vulnStatus": "Awaiting Analysis",
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                "value": "CWE-524"
              }
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            "source": "security-advisories@github.com",
            "type": "Primary"
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-10-02T17:35:28+00:00",
      "cve": "CVE-2026-94484",
      "id": "CVE-2026-94484",
      "initial_release_date": "2026-10-02T15:26:48.417000+00:00",
      "product_status:known_affected": "20",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "next: Next.js: Denial of Service via response cache poisoning",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-94484.json",
      "version": "3"
    }
  }
}



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