GHSA-vcc3-ghjq-m6fr
decode-uri-component: Denial of service via exponential decoding of malformed percent-encoded input
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | decode-uri-component | < 0.5.0 | 0.5.0 |
Details
As written in the advisory (Markdown source, shown as plain text).
### 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.
References
External links from the advisory. They lead to third-party sites.
- 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
- 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