CVE-2026-92558 (GCVE-0-2026-92558)

Vulnerability from cvelistv5 – Published: 2026-11-10 21:45 – Updated: 2026-11-10 21:45
VLAI
Summary
The proxy-cache and proxy-cache-advanced plugins in Kong Gateway Enterprise and Kong AI Gateway do not escape separator characters when building the cache key, allowing a remote attacker to cause a response cached for one request to be served for a different request on the same Route.
Severity
6.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:L/SA:L
CWE
  • CWE-116 - Improper Encoding or Escaping of Output
Assigner
Kong CNA
References
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.
Credits
timhaines
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Kong Gateway Enterprise",
          "vendor": "Kong Inc.",
          "versions": [
            {
              "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",
              "versionType": "custom"
            },
            {
              "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"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "timhaines"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "The proxy-cache and proxy-cache-advanced plugins in Kong Gateway Enterprise and Kong AI Gateway do not escape separator characters when building the cache key, allowing a remote attacker to cause a response cached for one request to be served for a different request on the same Route."
            }
          ],
          "value": "The proxy-cache and proxy-cache-advanced plugins in Kong Gateway Enterprise and Kong AI Gateway do not escape separator characters when building the cache key, allowing a remote attacker to cause a response cached for one request to be served for a different request on the same Route."
        }
      ],
      "impacts": [
        {
          "descriptions": [
            {
              "lang": "en",
              "value": "Cached response served for a different request (cache key collision)"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "LOW",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "LOW",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:L/SA:L",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-116",
              "description": "CWE-116 Improper Encoding or Escaping of Output",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-10T21:45:39.935Z",
        "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": "EXTERNAL"
      },
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "02762ae7-200e-4b20-9b2b-a77d5b8fc4cb",
    "assignerShortName": "Kong",
    "cveId": "CVE-2026-92558",
    "datePublished": "2026-11-10T21:45:39.935Z",
    "dateReserved": "2026-09-16T13:20:37.821Z",
    "dateUpdated": "2026-11-10T21:45:39.935Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.