GHSA-v2v2-hph8-q5xp

    Dashboard / Vulnerabilities / GHSA-v2v2-hph8-q5xp

    GHSA-v2v2-hph8-q5xp

    Published: 8 Jan 2024Last Modified: 10 Sept 2026

    Summary: @fastify/reply-from JSON Content-Type parsing confusion

    Details: ### Impact The main repo of fastify use [fast-content-type-parse](https://github.com/fastify/fast-content-type-parse) to parse request Content-Type, which will [trim after split](https://github.com/fastify/fast-content-type-parse/blob/2776d054dd48e9ce40b8d5e5ff9b46fee82b95f1/index.js#L59). The [fastify-reply-from](https://github.com/fastify/fastify-reply-from/blob/b79a22d6eb9a0b52cfbe8eb2cb22ad65f5a39e64/index.js#L118C14-L118C14) have not use this repo to unify the parse of Content-Type, which [won't trim](https://github.com/fastify/fastify-reply-from/blob/b79a22d6eb9a0b52cfbe8eb2cb22ad65f5a39e64/index.js#L118C14-L118C14). As a result, a reverse proxy server built with `@fastify/reply-from` could misinterpret the incoming body by passing an header `ContentType: application/json ; charset=utf-8`. This can lead to bypass of security checks. ### Patches `@fastify/reply-from` v9.6.0 include the fix. ### Workarounds There are no known workarounds. ### References Hackerone Report: https://hackerone.com/reports/2295770.

    Affected packages

    Package

    Name: @fastify/reply-from

    Purl: pkg:npm/%40fastify/reply-from

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -9.6.0

    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