samverschueren/decode-uri-component · Security
decode-uri-component: Denial of service via exponential decoding of malformed percent-encoded input
- GHSA ID
- GHSA-vcc3-ghjq-m6fr
- CVE ID
- CVE-2026-45822
- Severity
- medium
- Published
- Updated
- CVSS v4
- 6.6 · 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
Description
Impact
An 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.
Patches
Upgrade to [email protected].
Workarounds
Limit the size of the input.
CWEs
- CWE-400 · Uncontrolled Resource Consumption
- CWE-405 · Asymmetric Resource Consumption (Amplification)
- CWE-407 · Inefficient Algorithmic Complexity
- CWE-1176 · Inefficient CPU Computation
References
- https://github.com/SamVerschueren/decode-uri-component/security/advisories/GHSA-vcc3-ghjq-m6fr ↗
- https://nvd.nist.gov/vuln/detail/CVE-2026-45822 ↗
- https://github.com/SamVerschueren/decode-uri-component/commit/fa479dafeede7bedf04e5c89aa78f2a78c664005 ↗
- https://github.com/SamVerschueren/decode-uri-component/blob/00662938dc7c6241547ae8abce7785cc13ffd3f6/index.js ↗
- https://github.com/SamVerschueren/decode-uri-component/releases/tag/v0.5.0 ↗
- https://www.npmjs.com/package/decode-uri-component ↗
- https://github.com/advisories/GHSA-vcc3-ghjq-m6fr ↗