Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2023-46298
CVE-2023-46298:
JavaScript vulnerability analysis and mitigation
Overview
CVE-2023-46298 affects Next.js versions before 13.4.20-canary.13. The vulnerability stems from a missing cache-control header in empty prefetch responses, which can be cached by Content Delivery Networks (CDNs). The issue was discovered and disclosed in October 2023 (NVD, CVE).
Technical details
The vulnerability occurs when Next.js fails to include a cache-control header for empty prefetch responses. This technical oversight allows CDNs to cache these empty responses. The severity of this vulnerability is rated as HIGH with a CVSS v3.1 base score of 7.5 (Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) (NVD).
Impact
When exploited, this vulnerability can cause a denial of service condition affecting all users requesting the same URL through the affected CDN. This occurs because the CDN caches and serves the empty response instead of forwarding the request to the origin server (NVD).
Mitigation and workarounds
The vulnerability was patched in Next.js version 13.4.20-canary.13. Users should upgrade to this version or later to resolve the issue. The fix involves adding proper cache-control headers for prefetch empty responses (Github PR).
Additional resources
Source: This report was generated using AI
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