GHSA-QWWW-VCR4-C8H2

Vulnerability from github – Published: 2026-07-24 16:44 – Updated: 2026-08-07 18:16
VLAI
Summary
React Router: RSC Mode CSRF Bypass Allows Action Execution Before 400 Response
Details

This is a follow up to CVE-2026-22030 to address related CSRF flows in unstable RSC code paths.

[!NOTE] This only affects your application if you are using the unstable RSC APIs

Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Show details on source website
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "react-router"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.12.0"
            },
            {
              "fixed": "7.18.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "react-router"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.0.0"
            },
            {
              "fixed": "8.3.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-352"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-24T16:44:43Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "This is a follow up to CVE-2026-22030 to address related CSRF flows in unstable RSC code paths.\n\n\u003e [!NOTE]\n\u003e This only affects your application if you are using the unstable RSC APIs",
  "id": "GHSA-qwww-vcr4-c8h2",
  "modified": "2026-08-07T18:16:54Z",
  "published": "2026-07-24T16:44:43Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/remix-run/react-router/security/advisories/GHSA-qwww-vcr4-c8h2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/remix-run/react-router/pull/15353"
    },
    {
      "type": "WEB",
      "url": "https://github.com/remix-run/react-router/commit/7a71c728ad116bd78699a258b2014ce9585729f5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/remix-run/react-router/commit/8ebd5df9932854547963e3255c8454e62430e05d"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/remix-run/react-router"
    },
    {
      "type": "WEB",
      "url": "https://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v830"
    },
    {
      "type": "WEB",
      "url": "https://github.com/remix-run/react-router/blob/v7/CHANGELOG.md#v7182"
    },
    {
      "type": "WEB",
      "url": "https://github.com/remix-run/react-router/releases/tag/react-router%407.18.2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/remix-run/react-router/releases/tag/react-router@8.3.0"
    },
    {
      "type": "WEB",
      "url": "http://github.com/remix-run/react-router/pull/15311"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "React Router: RSC Mode CSRF Bypass Allows Action Execution Before 400 Response"
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • 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.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.