GHSA-R8FJ-RFF6-F7H5

Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-07-01 19:43
VLAI
Summary
Jenkins Bitbucket OAuth Plugin does not restrict the redirect URL after login
Details

Jenkins Bitbucket OAuth Plugin 0.17 and earlier does not restrict the redirect URL after login.

This allows attackers to perform phishing attacks by having users go to a Jenkins URL that will forward them to a different site after successful authentication.

Bitbucket OAuth Plugin 0.18 only redirects to relative (Jenkins) URLs.

Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 0.17"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.jenkins-ci.plugins:bitbucket-oauth"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.18"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-48924"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-601"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-01T19:43:52Z",
    "nvd_published_at": "2026-05-27T15:16:32Z",
    "severity": "MODERATE"
  },
  "details": "Jenkins Bitbucket OAuth Plugin 0.17 and earlier does not restrict the redirect URL after login.\n\nThis allows attackers to perform phishing attacks by having users go to a Jenkins URL that will forward them to a different site after successful authentication.\n\nBitbucket OAuth Plugin 0.18 only redirects to relative (Jenkins) URLs.",
  "id": "GHSA-r8fj-rff6-f7h5",
  "modified": "2026-07-01T19:43:52Z",
  "published": "2026-05-27T15:33:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48924"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/jenkinsci/bitbucket-oauth-plugin"
    },
    {
      "type": "WEB",
      "url": "https://www.jenkins.io/security/advisory/2026-05-27/#SECURITY-3761"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Jenkins Bitbucket OAuth Plugin does not restrict the redirect URL after login"
}


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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.

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Nomenclature

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.