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OpenAdvisories
Medium USN-7031-1 1 CVE

puma vulnerability

Published Sep 24, 2024 · Updated Apr 27, 2026

Ecosystem: Ubuntu

Summary

It was discovered that Puma incorrectly handled parsing certain headers.
A remote attacker could possibly use this issue to overwrite header values
set by intermediate proxies by providing duplicate headers containing
underscore characters.

Fixed packages 1

ReleasePackageFixed in
Ubuntu · 24.04 LTS 24.04:LTS puma 6.4.2-4ubuntu4.3

Vulnerabilities 1

  • Medium 5.4
    CVE-2024-45614 Public exploit

    Header normalization allows for client to clobber proxy set headers in Puma

    Puma is a Ruby/Rack web server built for parallelism. In affected versions clients could clobber values set by intermediate proxies (such as X-Forwarded-For) by providing a underscore version of the same header (X-Forwarded_For). Any users relying on proxy se…

    puma puma puma puma Debian Ubuntu Wolfi RubyGems

References

  • report
    https://ubuntu.com/security/CVE-2024-45614