FKIE_CVE-2026-33002

Vulnerability from fkie_nvd - Published: 2026-03-18 16:16 - Updated: 2026-03-21 00:18
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
Jenkins 2.442 through 2.554 (both inclusive), LTS 2.426.3 through LTS 2.541.2 (both inclusive) performs origin validation of requests made through the CLI WebSocket endpoint by computing the expected origin for comparison using the Host or X-Forwarded-Host HTTP request headers, making it vulnerable to DNS rebinding attacks that allow bypassing origin validation.
References
jenkinsci-cert@googlegroups.comhttps://www.jenkins.io/security/advisory/2026-03-18/#SECURITY-3674Vendor Advisory
Impacted products
Vendor Product Version
jenkins jenkins *
jenkins jenkins *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*",
              "matchCriteriaId": "B3638046-C2A7-4BEF-95E1-6E5C493DAA39",
              "versionEndExcluding": "2.541.3",
              "versionStartIncluding": "2.426.3",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*",
              "matchCriteriaId": "7C72BD61-34BC-4609-9019-4C342792D538",
              "versionEndExcluding": "2.555",
              "versionStartIncluding": "2.442",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Jenkins 2.442 through 2.554 (both inclusive), LTS 2.426.3 through LTS 2.541.2 (both inclusive) performs origin validation of requests made through the CLI WebSocket endpoint by computing the expected origin for comparison using the Host or X-Forwarded-Host HTTP request headers, making it vulnerable to DNS rebinding attacks that allow bypassing origin validation."
    },
    {
      "lang": "es",
      "value": "Jenkins 2.442 hasta 2.554 (ambos inclusive), LTS 2.426.3 hasta LTS 2.541.2 (ambos inclusive) realiza la validaci\u00f3n de origen de las solicitudes realizadas a trav\u00e9s del endpoint WebSocket de la CLI calculando el origen esperado para la comparaci\u00f3n utilizando los encabezados de solicitud HTTP Host o X-Forwarded-Host, lo que lo hace vulnerable a ataques de reencuadernaci\u00f3n de DNS que permiten eludir la validaci\u00f3n de origen."
    }
  ],
  "id": "CVE-2026-33002",
  "lastModified": "2026-03-21T00:18:44.090",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-03-18T16:16:28.187",
  "references": [
    {
      "source": "jenkinsci-cert@googlegroups.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.jenkins.io/security/advisory/2026-03-18/#SECURITY-3674"
    }
  ],
  "sourceIdentifier": "jenkinsci-cert@googlegroups.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-350"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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