{"action":"Upgrade apache2 to 2.4.52-r0 or later.","affected":[{"fixed":"2.4.52-r0","introduced":"0"}],"component":"apache2","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.13","exploited":false,"fixed_versions":["2.4.52-r0"],"id":"tcs_01M5NDHTDRYRS24DAVH9FZ8HWN","modified_at":"2026-10-23T17:17:56.225087588Z","published_at":"2021-12-20T12:15:07.393Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2021-44224","https://security.alpinelinux.org/vuln/CVE-2021-44224"],"severity":{"label":"high","score":8.2},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2021-44224#Alpine:v3.13/apache2","url":"https://osv.dev/vulnerability/ALPINE-CVE-2021-44224"}],"summary":"A crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurations mixing forward and reverse proxy declarations, can allo"}