GHSA-j7j6-7hfx-5522

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    GHSA-j7j6-7hfx-5522

    Published: 24 May 2022Last Modified: 25 Feb 2026

    Summary: Duplicate Advisory: Inconsistent Interpretation of HTTP Requests in Waitress

    Details: ## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-4ppp-gpcr-7qf6. This link is maintained to preserve external references. ## Original Description Waitress through version 1.3.1 allows request smuggling by sending the Content-Length header twice. Waitress would header fold a double Content-Length header and due to being unable to cast the now comma separated value to an integer would set the Content-Length to 0 internally. If two Content-Length headers are sent in a single request, Waitress would treat the request as having no body, thereby treating the body of the request as a new request in HTTP pipelining. This issue is fixed in Waitress 1.4.0.

    References: https://github.com/Pylons/waitress/security/advisories/GHSA-4ppp-gpcr-7qf6, https://nvd.nist.gov/vuln/detail/CVE-2019-16792, https://github.com/Pylons/waitress/commit/575994cd42e83fd772a5f7ec98b2c56751bd3f65, https://docs.pylonsproject.org/projects/waitress/en/latest/#security-fixes, https://github.com/Pylons/waitress, https://lists.debian.org/debian-lts-announce/2022/05/msg00011.html, https://www.oracle.com/security-alerts/cpuapr2022.html

    Affected packages

    Package

    Name: waitress

    Purl: pkg:pypi/waitress

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.4.0

    Affected versions

    0.1

    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-j7j6-7hfx-5522 | CVE-DB