{
"id": "GHSA-vcc3-ghjq-m6fr",
"aliases": [
"CVE-2026-45822"
],
"details": "### Impact\nAn attacker who can supply input to `decodeUriComponent()` (directly or via a dependency that uses this package on URL/query/path data) can cause excessive CPU usage and application unresponsiveness. This is an availability issue; there is no known memory corruption, data disclosure, or remote code execution impact.\n\n### Patches\nUpgrade to `[email protected] `.\n\n### Workarounds\nLimit the size of the input.",
"summary": "decode-uri-component: Denial of service via exponential decoding of malformed percent-encoded input",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.5.0"
}
]
}
],
"package": {
"name": "decode-uri-component",
"ecosystem": "npm"
},
"database_specific": {
"last_known_affected_version_range": "<= 0.4.2"
}
}
],
"modified": "2026-08-31T22:10:20Z",
"severity": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/S:N/AU:Y/R:U/V:D/RE:M/U:Amber"
}
],
"published": "2026-08-31T22:10:20Z",
"references": [
{
"url": "https://github.com/SamVerschueren/decode-uri-component/security/advisories/GHSA-vcc3-ghjq-m6fr",
"type": "WEB"
},
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45822",
"type": "ADVISORY"
},
{
"url": "https://github.com/SamVerschueren/decode-uri-component/commit/fa479dafeede7bedf04e5c89aa78f2a78c664005",
"type": "WEB"
},
{
"url": "https://github.com/SamVerschueren/decode-uri-component",
"type": "PACKAGE"
},
{
"url": "https://github.com/SamVerschueren/decode-uri-component/blob/00662938dc7c6241547ae8abce7785cc13ffd3f6/index.js",
"type": "WEB"
},
{
"url": "https://github.com/SamVerschueren/decode-uri-component/releases/tag/v0.5.0",
"type": "WEB"
},
{
"url": "https://www.npmjs.com/package/decode-uri-component",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-1176",
"CWE-400",
"CWE-405",
"CWE-407"
],
"severity": "MODERATE",
"github_reviewed": true,
"nvd_published_at": "2026-06-30T09:16:25Z",
"github_reviewed_at": "2026-08-31T22:10:20Z"
}
}