GHSA-vcc3-ghjq-m6fr

    Dashboard / Vulnerabilities / GHSA-vcc3-ghjq-m6fr

    GHSA-vcc3-ghjq-m6fr

    Published: 31 Aug 2026Last Modified: 1 Sept 2026

    Summary: decode-uri-component: Denial of service via exponential decoding of malformed percent-encoded input

    Details: ### 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: 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

    Affected packages

    Package

    Name: decode-uri-component

    Purl: pkg:npm/decode-uri-component

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -0.5.0

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High