CVE-2026-123041 (GCVE-0-2026-123041)

Vulnerability from cvelistv5 – Published: 2026-11-10 21:43 – Updated: 2026-11-10 21:43
VLAI
Summary
The request-callout plugin in Kong Gateway Enterprise and Kong AI Gateway omits callout headers not sent by the client from its cache key, allowing a cached callout response for a caller to be served to another.
CWE
  • CWE-524 - Use of Cache Containing Sensitive Information
Assigner
Kong CNA
Impacted products
Vendor Product Version
Kong Inc. Kong Gateway Enterprise Affected: 3.10.0.0 , < 3.10.0.20 (custom)
Affected: 3.13.0.0 , < 3.13.0.12 (custom)
Affected: 3.14.0.0 , < 3.14.0.17 (custom)
Affected: 3.15.0.0 , < 3.15.0.7 (custom)
Affected: 3.16.0.0 , < 3.16.0.2 (custom)
Create a notification for this product.
Kong Inc. Kong AI Gateway Affected: 2.2.0 , < 2.2.1 (custom)
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Kong Gateway Enterprise",
          "vendor": "Kong Inc.",
          "versions": [
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              "lessThan": "3.10.0.20",
              "status": "affected",
              "version": "3.10.0.0",
              "versionType": "custom"
            },
            {
              "lessThan": "3.13.0.12",
              "status": "affected",
              "version": "3.13.0.0",
              "versionType": "custom"
            },
            {
              "lessThan": "3.14.0.17",
              "status": "affected",
              "version": "3.14.0.0",
              "versionType": "custom"
            },
            {
              "lessThan": "3.15.0.7",
              "status": "affected",
              "version": "3.15.0.0",
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            {
              "lessThan": "3.16.0.2",
              "status": "affected",
              "version": "3.16.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Kong AI Gateway",
          "vendor": "Kong Inc.",
          "versions": [
            {
              "lessThan": "2.2.1",
              "status": "affected",
              "version": "2.2.0",
              "versionType": "custom"
            }
          ]
        }
      ],
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            }
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        }
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      "impacts": [
        {
          "descriptions": [
            {
              "lang": "en",
              "value": "Disclosure of cached callout responses across callers"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "exploitMaturity": "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:N/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
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              "lang": "en",
              "value": "GENERAL"
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      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-524",
              "description": "CWE-524 Use of Cache Containing Sensitive Information",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-10T21:43:16.091Z",
        "orgId": "02762ae7-200e-4b20-9b2b-a77d5b8fc4cb",
        "shortName": "Kong"
      },
      "references": [
        {
          "name": "Kong Gateway changelog",
          "tags": [
            "release-notes"
          ],
          "url": "https://developer.konghq.com/gateway/changelog/"
        },
        {
          "name": "Kong AI Gateway changelog",
          "tags": [
            "release-notes"
          ],
          "url": "https://developer.konghq.com/ai-gateway/changelog/"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "02762ae7-200e-4b20-9b2b-a77d5b8fc4cb",
    "assignerShortName": "Kong",
    "cveId": "CVE-2026-123041",
    "datePublished": "2026-11-10T21:43:16.091Z",
    "dateReserved": "2026-11-05T08:13:50.698Z",
    "dateUpdated": "2026-11-10T21:43:16.091Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}



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