{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-106498",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-106498",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-10-06T21:23:37.560Z",
    "updatedAt": "2026-10-09T01:55:00.494Z",
    "importedAt": "2026-10-24T01:57:50.502Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Backstage: Improper URL validation in catalog entity placeholder resolution",
      "summary": "Backstage is an open framework for building developer portals. Prior to 3.5.1, 3.6.2, 3.7.2, 3.8.2 and 3.9.1, the @backstage/plugin-catalog-backend package is affected by improper url validation in catalog entity placeholder resolution. An authenticated Backstage user could craft a catalog entity with placeholder directives that reference resources outside the entity's source repository. Under certain configurations, this could allow access to data not intended to be available to the user. This issue is fixed in versions 3.5.1, 3.6.2, 3.7.2, 3.8.2 and 3.9.1.",
      "affected": [
        {
          "vendor": "backstage",
          "product": "backstage",
          "versions": [
            {
              "version": "< 1.49.6",
              "status": "affected"
            },
            {
              "version": ">= 1.50.0-next.0, < 1.50.5",
              "status": "affected"
            },
            {
              "version": ">= 1.51.0-next.0, < 1.51.3",
              "status": "affected"
            },
            {
              "version": ">= 1.52.0-next.0, < 1.53.2",
              "status": "affected"
            },
            {
              "version": ">= 1.54.0-next.0, < 1.54.6",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "@backstage",
          "product": "plugin-catalog-backend",
          "versions": [
            {
              "version": "< 3.5.1",
              "status": "affected"
            },
            {
              "version": ">= 3.6.0, < 3.6.2",
              "status": "affected"
            },
            {
              "version": ">= 3.7.0, < 3.7.2",
              "status": "affected"
            },
            {
              "version": ">= 3.8.0, < 3.8.2",
              "status": "affected"
            },
            {
              "version": ">= 3.9.0, < 3.9.1",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}