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gunicorn version 19.4.5 contains a CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers vulnerability in "process_headers" function in "gunicorn/http/wsgi.py" that can result in an attacker causing the server to return arbitrary HTTP headers. This vulnerability appears to have been fixed in 19.5.0.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade gunicorn | Apr 30, 2018 | Apr 18, 2018 |
| Freebsd | — | Upgrade py37-gunicornUpgrade py36-gunicornUpgrade py35-gunicornUpgrade py27-gunicorn | Mar 5, 2019 | Mar 5, 2019 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Apr 18, 2018 |
| Suse | — | Upgrade python3-gunicornUpgrade python3-gunicorn-docUpgrade python-gunicorn-docUpgrade python-gunicorn | Mar 2, 2020 | Apr 17, 2018 |
| Ubuntu | — | Upgrade gunicornUpgrade gunicorn3Upgrade python-gunicornUpgrade python3-gunicorn | Jun 20, 2019 | Apr 18, 2018 |
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