Vulnerabilities in pkg:golang/github.com/justinas/nosurf

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-w9hf-35q4-vcjw",
  "modified" : "2025-05-14T14:56:27Z",
  "published" : "2025-05-14T14:56:27Z",
  "aliases" : [ "CVE-2025-46721" ],
  "summary" : "nosurf vulnerable to CSRF due to non-functional same-origin request checks",
  "details" : "### Impact\n\nThis vulnerability allows an attacker who controls content on the target site, or on a subdomain of the target site (either via XSS, or otherwise) to bypass Cross-Site Request Forgery checks and issue requests on user's behalf.\n\n### Details\n\nDue to misuse of the Go `net/http` library, nosurf categorizes all incoming requests as plain-text HTTP requests, in which case the `Referer` header is not checked to have the same origin as the target webpage.\n\nIf the attacker has control over HTML contents on either the target website (e.g. `example.com`), or on a website hosted on a subdomain of the target (e.g. `attacker.example.com`), they will also be able to manipulate cookies set for the target website. By acquiring the secret CSRF token from the cookie, or overriding the cookie with a new token known to the attacker, `attacker.example.com` is able to craft cross-site requests to `example.com`. \n\n### Patches\n\nA patch for the issue was released in nosurf 1.2.0.\n\n### Workarounds\n\nIn lieu of upgrading to a patched version of nosurf, users may additionally use another HTTP middleware to ensure that a non-safe HTTP request is coming from the same origin (e.g. by requiring a `Sec-Fetch-Site: same-origin` header in the request).\n\n### References\n\nhttps://github.com/advisories/GHSA-rq77-p4h8-4crw\nhttps://github.com/justinas/nosurf-cve-2025-46721\nhttps://www.cve.org/CVERecord?id=CVE-2025-46721\nhttps://github.com/justinas/nosurf/releases/tag/v1.2.0",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/justinas/nosurf"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.2.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/justinas/nosurf/security/advisories/GHSA-w9hf-35q4-vcjw"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-46721"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/justinas/nosurf/commit/ec9bb776d8e5ba9e906b6eb70428f4e7b009feee"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-rq77-p4h8-4crw"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/justinas/nosurf"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/justinas/nosurf-cve-2025-46721"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/justinas/nosurf/releases/tag/v1.2.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-352" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-05-14T14:56:27Z",
    "nvd_published_at" : "2025-05-13T16:15:31Z"
  }
}