{"id":"SUSE-SU-2026:4620-1","summary":"Security update for unbound","details":"This update for unbound fixes the following issues:\n\n- CVE-2026-77860: 'serve-expired' can bypass Unbound 'wait-limit' (bsc#1280403).\n- CVE-2026-77955: Possible ZONEMD verification bypass window (bsc#1280404).\n- CVE-2026-78227: Use-after-free in DoQ stream output buffer on reset re-transmission (bsc#1280405).\n- CVE-2026-80225: Possible degradation of service from continuous queries on the same TCP/DoT connection (bsc#1280406).\n- CVE-2026-81634: Possible heap buffer overflow during DNSSEC canonicalization (bsc#1280409).\n- CVE-2026-81642: Heap buffer overflow and possible Remote Code Execution when digesting DNSKEY (bsc#1280411).\n- CVE-2026-82717: CNAME synthesis could lead to heap corruption (bsc#1280412).\n- CVE-2026-82720: Use-after-free in DoH stream cleanup code path (bsc#1280413).\n- CVE-2026-85501: Retrap: Novel Vulnerabilities to launch Algorithmic Complexity Attacks on DNSSEC (bsc#1280414).\n\nChanges for libunbound-devel-mini:\n\n- Updated to version 1.26.1\n\nChanges for unbound:\n\n- Updated to version 1.26.1\n","modified":"2026-10-13T10:30:05.848682848Z","published":"2026-10-12T07:23:36Z","related":["CVE-2026-50248","CVE-2026-77860","CVE-2026-77955","CVE-2026-78227","CVE-2026-80225","CVE-2026-81634","CVE-2026-81642","CVE-2026-82717","CVE-2026-82720","CVE-2026-85501"],"upstream":["CVE-2026-50248","CVE-2026-77860","CVE-2026-77955","CVE-2026-78227","CVE-2026-80225","CVE-2026-81634","CVE-2026-81642","CVE-2026-82717","CVE-2026-82720","CVE-2026-85501"],"references":[{"type":"ADVISORY","url":"https://www.suse.com/support/update/announcement/2026/suse-su-20264620-1/"},{"type":"REPORT","url":"https://bugzilla.suse.com/1280403"},{"type":"REPORT","url":"https://bugzilla.suse.com/1280404"},{"type":"REPORT","url":"https://bugzilla.suse.com/1280405"},{"type":"REPORT","url":"https://bugzilla.suse.com/1280406"},{"type":"REPORT","url":"https://bugzilla.suse.com/1280409"},{"type":"REPORT","url":"https://bugzilla.suse.com/1280411"},{"type":"REPORT","url":"https://bugzilla.suse.com/1280412"},{"type":"REPORT","url":"https://bugzilla.suse.com/1280413"},{"type":"REPORT","url":"https://bugzilla.suse.com/1280414"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-50248"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-77860"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-77955"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-78227"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-80225"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-81634"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-81642"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-82717"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-82720"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2026-85501"}],"affected":[{"package":{"name":"unbound","ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP7","purl":"pkg:rpm/suse/unbound&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.26.1-150600.23.24.1"}]}],"ecosystem_specific":{"binaries":[{"unbound-anchor":"1.26.1-150600.23.24.1","unbound-devel":"1.26.1-150600.23.24.1","libunbound8":"1.26.1-150600.23.24.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4620-1.json"}},{"package":{"name":"unbound","ecosystem":"SUSE:Linux Enterprise Module for Package Hub 15 SP7","purl":"pkg:rpm/suse/unbound&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.26.1-150600.23.24.1"}]}],"ecosystem_specific":{"binaries":[{"unbound":"1.26.1-150600.23.24.1","unbound-python":"1.26.1-150600.23.24.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4620-1.json"}},{"package":{"name":"unbound","ecosystem":"SUSE:Linux Enterprise Server 15 SP6-LTSS","purl":"pkg:rpm/suse/unbound&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP6-LTSS"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.26.1-150600.23.24.1"}]}],"ecosystem_specific":{"binaries":[{"unbound-devel":"1.26.1-150600.23.24.1","libunbound8":"1.26.1-150600.23.24.1","unbound-anchor":"1.26.1-150600.23.24.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4620-1.json"}},{"package":{"name":"unbound","ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15 SP6","purl":"pkg:rpm/suse/unbound&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP6"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.26.1-150600.23.24.1"}]}],"ecosystem_specific":{"binaries":[{"unbound-devel":"1.26.1-150600.23.24.1","libunbound8":"1.26.1-150600.23.24.1","unbound-anchor":"1.26.1-150600.23.24.1"}]},"database_specific":{"source":"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:4620-1.json"}}],"schema_version":"1.9.0"}