GHSA-q4gf-8mx6-v5v3

Suggest an improvement
Source
https://github.com/advisories/GHSA-q4gf-8mx6-v5v3
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-q4gf-8mx6-v5v3/GHSA-q4gf-8mx6-v5v3.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-q4gf-8mx6-v5v3
Related
Published
2026-04-10T15:35:47Z
Modified
2026-04-13T20:29:26.502240703Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Next.js has a Denial of Service with Server Components
Details

A vulnerability affects certain React Server Components packages for versions 19.x and frameworks that use the affected packages, including Next.js 13.x, 14.x, 15.x, and 16.x using the App Router. The issue is tracked upstream as CVE-2026-23869. You can read more about this advisory our this changelog.

A specially crafted HTTP request can be sent to any App Router Server Function endpoint that, when deserialized, may trigger excessive CPU usage. This can result in denial of service in unpatched environments.

Database specific
{
    "cwe_ids": [
        "CWE-770"
    ],
    "severity": "HIGH",
    "nvd_published_at": null,
    "github_reviewed_at": "2026-04-10T15:35:47Z",
    "github_reviewed": true
}
References

Affected packages

npm / next

Package

Affected ranges

Type
SEMVER
Events
Introduced
13.0.0
Fixed
15.5.15

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-q4gf-8mx6-v5v3/GHSA-q4gf-8mx6-v5v3.json"

npm / next

Package

Affected ranges

Type
SEMVER
Events
Introduced
16.0.0-beta.0
Fixed
16.2.3

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-q4gf-8mx6-v5v3/GHSA-q4gf-8mx6-v5v3.json"