CVE-2026-53440

{
  "id": "CVE-2026-53440",
  "sourceIdentifier": "[email protected]",
  "published": "2026-06-10T14:16:36.990",
  "lastModified": "2026-10-26T11:10:00.157",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Jenkins 2.567 and earlier, LTS 2.555.2 and earlier does not ensure that the \"from\" parameter in the \"Delegate to servlet container\" security realm is safe to redirect to after login, allowing attackers to perform phishing attacks by redirecting users to an attacker-controlled domain."
    },
    {
      "lang": "es",
      "value": "Jenkins 2.567 y anteriores, LTS 2.555.2 y anteriores no garantiza que el parámetro ’from’ en el reino de seguridad ’Delegate to servlet container’ sea seguro para redirigir después del inicio de sesión, permitiendo a los atacantes realizar ataques de phishing al redirigir a los usuarios a un dominio controlado por el atacante."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Jenkins Project",
          "product": "Jenkins",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.568",
              "lessThan": "*",
              "versionType": "maven",
              "status": "unaffected"
            },
            {
              "version": "2.555.3",
              "lessThan": "2.555.*",
              "versionType": "maven",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-06-10T14:39:08.475776Z",
          "id": "CVE-2026-53440",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-601"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*",
              "versionEndExcluding": "2.555.3",
              "matchCriteriaId": "648B5148-FE3B-464A-8963-DCF7ACEF84E5"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*",
              "versionEndExcluding": "2.568",
              "matchCriteriaId": "356A970F-6576-49B6-8EBA-E9770ED190A7"
            }
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      ]
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  ],
  "references": [
    {
      "url": "https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3721",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}