{"id":"RHSA-2026:57541","summary":"Red Hat Security Advisory: osbuild-composer security update","modified":"2026-08-24T10:18:30Z","published":"2026-08-21T10:14:00Z","related":["GO-2026-5026"],"upstream":["CVE-2026-39821","CVE-2026-55677"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:57541"},{"type":"ARTICLE","url":"https://access.redhat.com/security/updates/classification/#important"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2480756"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2493622"},{"type":"ADVISORY","url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_57541.json"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-39821"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2026-39821"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-39821"},{"type":"ARTICLE","url":"https://go.dev/cl/767220"},{"type":"ARTICLE","url":"https://go.dev/issue/78760"},{"type":"ARTICLE","url":"https://groups.google.com/g/golang-announce/c/iI-mYSI0lu8"},{"type":"ADVISORY","url":"https://pkg.go.dev/vuln/GO-2026-5026"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-55677"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2026-55677"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55677"},{"type":"ARTICLE","url":"https://github.com/labstack/echo/security/advisories/GHSA-vfp3-v2gw-7wfq"}],"affected":[{"package":{"name":"osbuild-composer","ecosystem":"Red Hat:rhel_eus:9.6::appstream","purl":"pkg:rpm/redhat/osbuild-composer"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:132.2-10.el9_6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:57541.json"}},{"package":{"name":"osbuild-composer-core","ecosystem":"Red Hat:rhel_eus:9.6::appstream","purl":"pkg:rpm/redhat/osbuild-composer-core"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:132.2-10.el9_6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:57541.json"}},{"package":{"name":"osbuild-composer-core-debuginfo","ecosystem":"Red Hat:rhel_eus:9.6::appstream","purl":"pkg:rpm/redhat/osbuild-composer-core-debuginfo"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:132.2-10.el9_6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:57541.json"}},{"package":{"name":"osbuild-composer-debuginfo","ecosystem":"Red Hat:rhel_eus:9.6::appstream","purl":"pkg:rpm/redhat/osbuild-composer-debuginfo"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:132.2-10.el9_6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:57541.json"}},{"package":{"name":"osbuild-composer-debugsource","ecosystem":"Red Hat:rhel_eus:9.6::appstream","purl":"pkg:rpm/redhat/osbuild-composer-debugsource"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:132.2-10.el9_6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:57541.json"}},{"package":{"name":"osbuild-composer-tests-debuginfo","ecosystem":"Red Hat:rhel_eus:9.6::appstream","purl":"pkg:rpm/redhat/osbuild-composer-tests-debuginfo"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:132.2-10.el9_6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:57541.json"}},{"package":{"name":"osbuild-composer-worker","ecosystem":"Red Hat:rhel_eus:9.6::appstream","purl":"pkg:rpm/redhat/osbuild-composer-worker"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:132.2-10.el9_6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:57541.json"}},{"package":{"name":"osbuild-composer-worker-debuginfo","ecosystem":"Red Hat:rhel_eus:9.6::appstream","purl":"pkg:rpm/redhat/osbuild-composer-worker-debuginfo"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:132.2-10.el9_6"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2026:57541.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N"}]}