{"id":"RLSA-2026:71543","summary":"Important: cockpit-image-builder security update","details":"The image-builder-frontend generates custom images suitable for deploying systems or uploading to the cloud. It integrates into Cockpit as a frontend for osbuild.\n\nSecurity Fix(es):\n\n* fast-uri: fast-uri: Server-Side Request Forgery via repeated hostname percent-decoding (CVE-2026-75899)\n\n* fast-uri: fast-uri: Server-side request forgery via malformed IPv6 normalization (CVE-2026-75975)\n\n* fast-uri: fast-uri: URI parsing flaw enables server-side request forgery and redirects (CVE-2026-76172)\n\n* fast-uri: fast-uri: Authority Injection via Unvalidated Port Serialization (CVE-2026-84292)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","modified":"2026-09-25T12:30:02.736711368Z","published":"2026-09-25T12:09:37.504383Z","upstream":["CVE-2026-75899","CVE-2026-75975","CVE-2026-76172","CVE-2026-84292"],"database_specific":{"source_advisory":"RHSA-2026:71543","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/"},"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2026:71543"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2521778"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2521779"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2521798"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2527747"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:71543"}],"affected":[{"package":{"name":"cockpit-image-builder","ecosystem":"Rocky Linux:10","purl":"pkg:rpm/rocky-linux/cockpit-image-builder?distro=rocky-linux-10-aarch64&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:94.4-1.el10_2"}],"database_specific":{"yum_repository":"AppStream"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2026:71543.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}