{"id":"OSV-2026-98","summary":"Heap-buffer-overflow in hostname_issubdomain","details":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=476539622\n\n```\nCrash type: Heap-buffer-overflow READ 1\nCrash state:\nhostname_issubdomain\nfuzz_util.c\n```\n","modified":"2026-01-21T00:16:59.551548Z","published":"2026-01-21T00:16:59.551255Z","references":[{"type":"REPORT","url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=476539622"}],"affected":[{"package":{"name":"dnsmasq","ecosystem":"OSS-Fuzz","purl":"pkg:generic/dnsmasq"},"ranges":[{"type":"GIT","repo":"git://thekelleys.org.uk/dnsmasq.git","events":[{"introduced":"1269f074f86bb959863012063060a3a082d37dc4"},{"fixed":"1eab169173fc4c8579a3db61186096fe117e6aca"}]}],"versions":["v2.93test1","v2.93test2","v2.93test3","v2.93test4","v2.93test5","v2.93test6"],"ecosystem_specific":{"severity":"MEDIUM"},"database_specific":{"introduced_range":"e1faf705c96352906e5b867cdd772eb2808e394c:cb321709e9f20cd0949aa375dad2b97050394659","source":"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/dnsmasq/OSV-2026-98.yaml","fixed_range":"cb321709e9f20cd0949aa375dad2b97050394659:1eab169173fc4c8579a3db61186096fe117e6aca"}}],"schema_version":"1.7.3"}