{"id":"ALSA-2026:42096","summary":"Important: c-ares security update","details":"The c-ares C library defines asynchronous DNS (Domain Name System) requests and provides name resolving API.  \n\nSecurity Fix(es):  \n\n  * c-ares: c-ares: Use-after-free / double-free in query-completion handling (CVE-2026-33630)\n\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.\n","modified":"2026-07-21T13:15:03.853761673Z","published":"2026-07-20T00:00:00Z","related":["CVE-2026-33630"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:42096"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-33630"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2497686"},{"type":"ADVISORY","url":"https://errata.almalinux.org/10/ALSA-2026-42096.html"}],"affected":[{"package":{"name":"c-ares","ecosystem":"AlmaLinux:10","purl":"pkg:rpm/almalinux/c-ares"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.34.6-2.el10_2"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2026:42096.json"}},{"package":{"name":"c-ares-devel","ecosystem":"AlmaLinux:10","purl":"pkg:rpm/almalinux/c-ares-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.34.6-2.el10_2"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2026:42096.json"}}],"schema_version":"1.7.5"}