CVE-2022-36032

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    CVE-2022-36032

    Published: 6 Sept 2022Last Modified: 12 Aug 2026

    Summary: ReactPHP's HTTP server parses encoded cookie names so malicious `__Host-` and `__Secure-` cookies can be sent

    Details: ReactPHP HTTP is a streaming HTTP client and server implementation for ReactPHP. In ReactPHP's HTTP server component versions starting with 0.7.0 and prior to 1.7.0, when ReactPHP is processing incoming HTTP cookie values, the cookie names are url-decoded. This may lead to cookies with prefixes like `__Host-` and `__Secure-` confused with cookies that decode to such prefix, thus leading to an attacker being able to forge cookie which is supposed to be secure. This issue is fixed in ReactPHP HTTP version 1.7.0. As a workaround, Infrastructure or DevOps can place a reverse proxy in front of the ReactPHP HTTP server to filter out any unexpected `Cookie` request headers.

    References: https://github.com/reactphp/http/releases/tag/v1.7.0, https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/36xxx/CVE-2022-36032.json, https://github.com/reactphp/http/security/advisories/GHSA-w3w9-vrf5-8mx8, https://nvd.nist.gov/vuln/detail/CVE-2022-36032, https://github.com/reactphp/http/commit/663c9a3b77b71463fa7fcb76a6676ffd16979dd6, https://github.com/reactphp/http/pull/175

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 8c806074b6637cfd6cbb7049d5d500b18bb56cd4
    Fixed -4a1e85382e8c2a9e0fdb8ac04e94585da2083bfa

    Affected versions

    v1.6.0

    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
    CVE-2022-36032 | CVE-DB