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CVE-2026-53437

Estado: ModificadaMedia (4.3)—

Jenkins 2.567 and earlier, LTS 2.555.2 and earlier improperly determines that a redirect URL after login is legitimately pointing to Jenkins when it contains tab or newline characters between `//`, allowing attackers to perform phishing attacks.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Jenkins — Jenkins

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-53437",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2026-53437",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-06-10T15:42:49.165047Z"
        }
      }
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
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        "exploitabilityScore": 2.8
      },
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
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        "exploitabilityScore": 2.8
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  "published": "2026-06-10T14:16:36.677",
  "references": [
    {
      "url": "https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3711+3755",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "jenkinsci-cert@googlegroups.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:60239",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
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      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
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      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
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      "url": "https://access.redhat.com/errata/RHSA-2026:60254",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
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      "url": "https://access.redhat.com/errata/RHSA-2026:60256",
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      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
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      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-601"
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      "description": [
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          "value": "CWE-601"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Jenkins 2.567 and earlier, LTS 2.555.2 and earlier improperly determines that a redirect URL after login is legitimately pointing to Jenkins when it contains tab or newline characters between `//`, allowing attackers to perform phishing attacks."
    }
  ],
  "lastModified": "2026-08-27T13:18:24.343",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*",
              "vulnerable": true,
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              "versionEndExcluding": "2.555.3"
            },
            {
              "criteria": "cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*",
              "vulnerable": true,
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              "versionEndExcluding": "2.568"
            }
          ],
          "operator": "OR"
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  "sourceIdentifier": "jenkinsci-cert@googlegroups.com"
}