GHSA-673Q-MJM6-R5XR
Vulnerability from github – Published: 2026-10-22 16:42 – Updated: 2026-10-22 16:42Impact
A vulnerability in applications using App router with Cache Component can lead to remote code execution. The application needs to have a use cache function that returns multiple typed arrays.
Workaround
There is no known workaround for affected applications with such use cache functions. You should upgrade immediately even if your application does not have similar functions.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 16.4.0"
},
"package": {
"ecosystem": "npm",
"name": "next"
},
"ranges": [
{
"events": [
{
"introduced": "16.0.0"
},
{
"fixed": "16.4.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-502"
],
"github_reviewed": true,
"github_reviewed_at": "2026-10-22T16:42:31Z",
"nvd_published_at": null,
"severity": "CRITICAL"
},
"details": "## Impact\n\nA vulnerability in applications using App router with Cache Component can lead to remote code execution. The application needs to have a `use cache` function that returns multiple typed arrays.\n\n## Workaround\n\nThere is no known workaround for affected applications with such `use cache` functions. You should upgrade immediately even if your application does not have similar functions.",
"id": "GHSA-673q-mjm6-r5xr",
"modified": "2026-10-22T16:42:32Z",
"published": "2026-10-22T16:42:31Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/vercel/next.js/security/advisories/GHSA-673q-mjm6-r5xr"
},
{
"type": "WEB",
"url": "https://github.com/vercel/next.js/commit/a4cea6aec5da89d116b8960e113189cf51745d2f"
},
{
"type": "PACKAGE",
"url": "https://github.com/vercel/next.js"
},
{
"type": "WEB",
"url": "https://github.com/vercel/next.js/releases/tag/v16.4.1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Next.js: Unauthenticated Remote Code Execution in `use cache` functions returning typed arrays"
}
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