{"id":"OSV-2026-736","summary":"Heap-buffer-overflow in coap_pdu_parse_header","details":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=512517700\n\n```\nCrash type: Heap-buffer-overflow READ 1\nCrash state:\ncoap_pdu_parse_header\ncoap_pdu_parse2\ncoap_pdu_parse\n```\n","modified":"2026-05-14T00:21:13.272270Z","published":"2026-05-14T00:21:13.271977Z","references":[{"type":"REPORT","url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=512517700"}],"affected":[{"package":{"name":"libcoap","ecosystem":"OSS-Fuzz","purl":"pkg:generic/libcoap"},"ranges":[{"type":"GIT","repo":"https://github.com/obgm/libcoap.git","events":[{"introduced":"2614649eccf9836355235ef8fab018f2f56669b8"},{"fixed":"c1147eb096b4810354ccb5796c7d4d84fb10980f"}]}],"ecosystem_specific":{"severity":"MEDIUM"},"database_specific":{"source":"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libcoap/OSV-2026-736.yaml","introduced_range":"c99bf12801d845cb6543aea72c12c33ebc07720a:64e2a65ad047e1f9429f4c0b7b838a50bda4b909"}}],"schema_version":"1.7.5"}