GHSA-q768-x9m6-m9qp

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    GHSA-q768-x9m6-m9qp

    Published: 21 Jul 2022Last Modified: 4 Feb 2026

    Summary: undici before v5.8.0 vulnerable to uncleared cookies on cross-host / cross-origin redirect

    Details: ### Impact Authorization headers are already cleared on cross-origin redirect in https://github.com/nodejs/undici/blob/main/lib/handler/redirect.js#L189, based on https://github.com/nodejs/undici/issues/872. However, cookie headers which are sensitive headers and are official headers found in the spec, remain uncleared. There also has been active discussion of implementing a cookie store https://github.com/nodejs/undici/pull/1441, which suggests that there are active users using cookie headers in undici. As such this may lead to accidental leakage of cookie to a 3rd-party site or a malicious attacker who can control the redirection target (ie. an open redirector) to leak the cookie to the 3rd party site. ### Patches This was patched in v5.8.0. ### Workarounds By default, this vulnerability is not exploitable. Do not enable redirections, i.e. `maxRedirections: 0` (the default). ### References https://hackerone.com/reports/1635514 https://curl.se/docs/CVE-2018-1000007.html https://curl.se/docs/CVE-2022-27776.html ### For more information If you have any questions or comments about this advisory: * Open an issue in [undici repository](https://github.com/nodejs/undici/issues) * To make a report, follow the [SECURITY](https://github.com/nodejs/node/blob/HEAD/SECURITY.md) document

    Affected packages

    Package

    Name: undici

    Purl: pkg:npm/undici

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -5.8.0

    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
    GHSA-q768-x9m6-m9qp | CVE-DB