{"id":"OSV-2026-514","aliases":[],"status":"published","title":"Heap-buffer-overflow in format_expand1","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=498472071\n\n```\nCrash type: Heap-buffer-overflow READ 1\nCrash state:\nformat_expand1\nformat_expand\nformat-fuzzer.c\n```","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2026-04-03T00:09:42.155641Z","modified":"2026-04-03T00:09:42Z","affected":[{"source":"osv","ecosystem":"OSS-Fuzz","package":"tmux","ranges":[{"type":"GIT","events":[{"introduced":"7620c03b7278ed631efa98455c5e116538c23ed7"},{"fixed":"43e2942fa05fed779324fd379bb1577ef35c158d"}]}]}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=498472071","tags":["report"]}],"sources":{"osv":[{"id":"OSV-2026-514","title":"Heap-buffer-overflow in format_expand1","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=498472071\n\n```\nCrash type: Heap-buffer-overflow READ 1\nCrash state:\nformat_expand1\nformat_expand\nformat-fuzzer.c\n```\n","status":"published","published":"2026-04-03T00:09:42.155641Z","modified":"2026-04-03T00:09:42.155954Z","updated_at":"2026-11-02T15:52:50.263679Z"}]}}