{"schema_version": "1.7.0", "id": "RLSA-2026:65534", "modified": "2026-09-09T18:12:20.331236Z", "published": "2026-09-09T18:08:44.206459Z", "upstream": ["CVE-2026-32280", "CVE-2026-32281", "CVE-2026-33810", "CVE-2026-33811", "CVE-2026-33818", "CVE-2026-39820", "CVE-2026-39821", "CVE-2026-42499", "CVE-2026-42504", "CVE-2026-56853", "CVE-2026-56858", "CVE-2026-56859", "CVE-2026-56860", "CVE-2026-56862"], "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* crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation (CVE-2026-32281)\n\n* crypto/x509: golang: Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application (CVE-2026-33810)\n\n* crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280)\n\n* net/mail: golang: net/mail: Denial of Service via pathological email address parsing (CVE-2026-42499)\n\n* net/mail: golang: Go net/mail: Denial of Service via crafted email inputs (CVE-2026-39820)\n\n* net: golang: Go net package: Denial of Service via long CNAME response in LookupCNAME (CVE-2026-33811)\n\n* golang.org/x/net/idna: golang: net/http: golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing (CVE-2026-39821)\n\n* mime: golang: Golang MIME: Denial of Service via maliciously-crafted MIME header (CVE-2026-42504)\n\n* encoding/asn1: golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal (CVE-2026-33818)\n\n* net/url: golang: golang net/url: Denial of Service from quadratic complexity in path resolution (CVE-2026-56860)\n\n* net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service (CVE-2026-56853)\n\n* html/template: golang: Go html/template: Cross-Site Scripting via pathological input (CVE-2026-56858)\n\n* crypto/tls: golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages (CVE-2026-56862)\n\n* encoding/xml: golang: Go: Denial of Service via XML decoding recursion depth issue (CVE-2026-56859)\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:C/C:H/I:L/A:L"}], "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": "0:52.1-1.el10_2.2.rocky.0.1"}], "database_specific": {"yum_repository": "AppStream"}}]}], "references": [{"type": "ADVISORY", "url": "https://errata.rockylinux.org/RLSA-2026:65534"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515820"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515827"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2484204"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2456339"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515838"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2456335"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515840"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467820"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2456333"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2480756"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467809"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467822"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515815"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515839"}, {"type": "ADVISORY", "url": "https://access.redhat.com/errata/RHSA-2026:65534"}], "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-2026:65534"}}