Vulnerabilities in pkg:npm/matrix-appservice-bridge

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-vc7j-h8xg-fv5x",
  "modified" : "2023-08-04T17:26:32Z",
  "published" : "2023-08-04T17:26:32Z",
  "aliases" : [ "CVE-2023-38691" ],
  "summary" : "matrix-appservice-bridge doesn't verify the sub parameter of an openId token exhange, allowing unauthorized access to provisioning APIs",
  "details" : "### Impact\n\nA malicious Matrix server can use a foreign user's MXID in an OpenID exchange, allowing a bad actor to impersonate users when using the provisioning API.\n\n### Details\n\nThe library does not check that the servername part of the `sub` parameter (containing the user's *claimed* MXID) is the same as the servername we are talking to. A malicious actor could spin up a server on any given domain, respond with a `sub` parameter according to the user they want to act as and use the resulting token to perform provisioning requests.\n\n### Workarounds\n\nDisable the provisioning API. If the bridge does not use the provisioning API, you are not vulnerable.\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "matrix-appservice-bridge"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0.0"
      }, {
        "fixed" : "8.1.2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "matrix-appservice-bridge"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.0.0"
      }, {
        "fixed" : "9.0.1"
      } ]
    } ],
    "versions" : [ "9.0.0" ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/matrix-org/matrix-appservice-bridge/security/advisories/GHSA-vc7j-h8xg-fv5x"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-38691"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/matrix-org/matrix-appservice-bridge/commit/4c6723a5e7beda65cdf1ae5dbb882e8beaac8552"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/matrix-org/matrix-appservice-bridge"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-287" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-08-04T17:26:32Z",
    "nvd_published_at" : "2023-08-04T17:15:11Z"
  }
}