{"id":"OSV-2026-532","aliases":[],"status":"published","title":"Heap-buffer-overflow in regsub","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=499446092\n\n```\nCrash type: Heap-buffer-overflow READ 1\nCrash state:\nregsub\nformat_replace\nformat_expand1\n```","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2026-04-05T00:06:36.291055Z","modified":"2026-04-05T00:06:36Z","affected":[{"source":"osv","ecosystem":"OSS-Fuzz","package":"tmux","ranges":[{"type":"GIT","events":[{"introduced":"7620c03b7278ed631efa98455c5e116538c23ed7"},{"fixed":"3badbc50e0d1c45ebfca2d2d1fad059a055584a5"},{"fixed":"42dafcc62a9361eeaff286172f0e35d4ece12b5a"}]}]}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=499446092","tags":["report"]}],"sources":{"osv":[{"id":"OSV-2026-532","title":"Heap-buffer-overflow in regsub","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=499446092\n\n```\nCrash type: Heap-buffer-overflow READ 1\nCrash state:\nregsub\nformat_replace\nformat_expand1\n```\n","status":"published","published":"2026-04-05T00:06:36.291055Z","modified":"2026-04-05T00:06:36.291504Z","updated_at":"2026-11-02T15:52:50.263679Z"}]}}