{"id":"CVE-2023-27522","aliases":["BIT-apache-2023-27522","GHSA-vcph-37mh-fqrh","PYSEC-2026-1058"],"url":"https://o3.security/vulnerability/CVE-2023-27522","summary":"Apache HTTP Server: mod_proxy_uwsgi HTTP response splitting","details":"HTTP Response Smuggling vulnerability in Apache HTTP Server via mod_proxy_uwsgi. This issue affects Apache HTTP Server from 2.4.30 through 2.4.55 and the uWSGI PyPI package prior to version 2.0.22. Special characters in the origin response header can truncate/split the response forwarded to the client.","published":"2023-03-07T15:09:30.122Z","modified":"2026-09-23T03:45:24.482447148Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"uwsgi","fixedVersion":"2.0.22"}],"fix":{"url":"https://github.com/apache/httpd/commit/d753ea76b5972a85349b68c31b59d04c60014f2d","label":"apache/httpd@d753ea7"},"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2023/04/msg00028.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27522.json"},{"type":"ADVISORY","url":"https://httpd.apache.org/security/vulnerabilities_24.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-27522"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202309-01"},{"type":"WEB","url":"https://github.com/apache/httpd/commit/d753ea76b5972a85349b68c31b59d04c60014f2d"},{"type":"WEB","url":"https://github.com/unbit/uwsgi/commit/58ee1df31fa9e9af106aaeabb82374c36b433822"},{"type":"WEB","url":"https://github.com/unbit/uwsgi/commit/acb03530aaaeaa810f28a5b64da619525940f569"},{"type":"PACKAGE","url":"https://github.com/unbit/uwsgi"},{"type":"WEB","url":"https://uwsgi-docs.readthedocs.io/en/latest/Changelog-2.0.22.html"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-23T03:45:24.482447148Z"}}