{"id":"OSV-2026-736","aliases":[],"status":"published","title":"Heap-buffer-overflow in coap_pdu_parse_header","description":"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```","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2026-05-14T00:21:13.271977Z","modified":"2026-05-14T00:21:13Z","affected":[{"source":"osv","ecosystem":"OSS-Fuzz","package":"libcoap","ranges":[{"type":"GIT","events":[{"introduced":"2614649eccf9836355235ef8fab018f2f56669b8"},{"fixed":"c1147eb096b4810354ccb5796c7d4d84fb10980f"}]}]}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=512517700","tags":["report"]}],"sources":{"osv":[{"id":"OSV-2026-736","title":"Heap-buffer-overflow in coap_pdu_parse_header","description":"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","status":"published","published":"2026-05-14T00:21:13.271977Z","modified":"2026-05-14T00:21:13.27227Z","updated_at":"2026-11-02T15:52:50.263679Z"}]}}