{"action":"Upgrade apache2 to 2.4.48-r0 or later.","affected":[{"fixed":"2.4.48-r0","introduced":"0"}],"component":"apache2","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.24","exploited":false,"fixed_versions":["2.4.48-r0"],"id":"tcs_01M5ND1MPX4DTSZSS05V2CDXCX","modified_at":"2026-10-23T17:17:56.163102946Z","published_at":"2021-06-10T07:15:07.580Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2021-26691","https://security.alpinelinux.org/vuln/CVE-2021-26691"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2021-26691#Alpine:v3.24/apache2","url":"https://osv.dev/vulnerability/ALPINE-CVE-2021-26691"}],"summary":"In Apache HTTP Server versions 2.4.0 to 2.4.46 a specially crafted SessionHeader sent by an origin server could cause a heap overflow"}