{"schema_version": "1.7.0", "id": "RLSA-2026:67139", "modified": "2026-09-15T12:13:00.901511Z", "published": "2026-09-15T12:08:56.876794Z", "upstream": ["CVE-2026-25681", "CVE-2026-27136", "CVE-2026-41178", "CVE-2026-42502"], "summary": "Important: image-builder security update", "details": "A local binary for building customized OS artifacts such as VM images and OSTree commits. Uses osbuild under the hood.\n\nSecurity Fix(es):\n\n* golang.org/x/net/html: golang: golang.org/x/net/html: Cross-Site Scripting via HTML parsing bypass (CVE-2026-27136)\n\n* golang.org/x/net/html: golang.org/x/net/html: Arbitrary code execution via Cross-Site Scripting (CVE-2026-25681)\n\n* golang.org/x/net/html: golang: golang.org/x/net/html: Cross-Site Scripting via unexpected HTML tree rendering (CVE-2026-42502)\n\n* github.com/open-telemetry/opentelemetry-go: go.opentelemetry.io/otel/baggage: go.opentelemetry.io/otel/propagation: OpenTelemetry-Go: Denial of Service via oversized baggage headers (CVE-2026-41178)\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.", "severity": [{"type": "CVSS_V3", "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N"}], "affected": [{"package": {"ecosystem": "Rocky Linux:10", "name": "image-builder", "purl": "pkg:rpm/rocky-linux/image-builder?distro=rocky-linux-10&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:52.1-2.el10_2.rocky.0.1"}], "database_specific": {"yum_repository": "AppStream"}}]}], "references": [{"type": "ADVISORY", "url": "https://errata.rockylinux.org/RLSA-2026:67139"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2480757"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2480761"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2480762"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2484830"}, {"type": "ADVISORY", "url": "https://access.redhat.com/errata/RHSA-2026:67139"}], "credits": [{"name": "Rocky Enterprise Software Foundation"}, {"name": "Red Hat"}], "database_specific": {"license": "CC-BY-4.0", "license_url": "https://creativecommons.org/licenses/by/4.0/", "source_advisory": "RHSA-2026:67139"}}