{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "6.2.19.Final"
              },
              {
                "introduced": "7.0.0.Alpha1"
              },
              {
                "fixed": "7.0.5.Final"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "introduced": "6d3d538e20b528fc186b32f838a15ca41e12268e"
            },
            {
              "fixed": "84424a50ae863c4ea426a013b93d6447a57ed382"
            },
            {
              "fixed": "7ca9221557f546e7cb984443fab4854b0c57795f"
            },
            {
              "fixed": "efeb2b7"
            }
          ],
          "repo": "https://github.com/resteasy/resteasy",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-972r-f3fv-whm3"
  ],
  "database_specific": {
    "cna_assigner": "redhat",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89058.json"
  },
  "details": "A flaw was found in RESTEasy's CorsFilter, which, when configured to allow all origins (\"*\"), reflects the request's Origin header back in the Access-Control-Allow-Origin response together with Access-Control-Allow-Credentials: true. This permissive cross-origin policy allows a malicious website to make credentialed cross-origin requests and read authenticated responses from a victim's session, resulting in a loss of confidentiality.",
  "id": "CVE-2026-89058",
  "modified": "2026-09-25T03:30:54.924754574Z",
  "published": "2026-09-18T07:20:29.162Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://access.redhat.com/downloads/content/package-browser/"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/security/cve/CVE-2026-89058"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89058.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/resteasy/resteasy/security/advisories/GHSA-972r-f3fv-whm3"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89058"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2519775"
    },
    {
      "type": "FIX",
      "url": "https://github.com/resteasy/resteasy/commit/efeb2b7"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/resteasy/resteasy"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Resteasy-core: resteasy: corsfilter reflects arbitrary origin with credentials under wildcard config"
}