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OpenAdvisories
Medium USN-6155-2 1 CVE

requests vulnerability

Published Jun 15, 2023 · Updated Jun 25, 2026

Ecosystem: Ubuntu

Summary

USN-6155-1 fixed a vulnerability in Requests. This update provides
the corresponding update for Ubuntu 16.04 ESM and 18.04 ESM.

Original advisory details:

Dennis Brinkrolf and Tobias Funke discovered that Requests incorrectly
leaked Proxy-Authorization headers. A remote attacker could possibly use
this issue to obtain sensitive information.

Fixed packages 2

ReleasePackageFixed in
Ubuntu · Pro 16.04 LTS Pro:16.04:LTS requests 2.9.1-3ubuntu0.1+esm1
Ubuntu · Pro 18.04 LTS Pro:18.04:LTS requests 2.18.4-2ubuntu0.1+esm1

Vulnerabilities 1

  • Medium 6.1
    CVE-2023-32681 Public exploit

    Unintended leak of Proxy-Authorization header in requests

    Requests is a HTTP library. Since Requests 2.3.0, Requests has been leaking Proxy-Authorization headers to destination servers when redirected to an HTTPS endpoint. This is a product of how we use `rebuild_proxies` to reattach the `Proxy-Authorization` header…

    psf requests python-pip requests Debian Ubuntu Azure Linux PyPI

References

  • report
    https://ubuntu.com/security/CVE-2023-32681