{"id":"OSV-2026-962","aliases":[],"status":"published","title":"Use-of-uninitialized-value in iup_delta_optimize","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=526770452\n\n```\nCrash type: Use-of-uninitialized-value\nCrash state:\niup_delta_optimize\nOT::tuple_delta_t::optimize\nOT::TupleVariationData\u003cOT::NumType\u003ctrue, unsigned short, 2u\u003e\u003e::tuple_variations_\n```","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2026-06-24T00:03:23.338692Z","modified":"2026-06-24T00:03:23Z","affected":[{"source":"osv","ecosystem":"OSS-Fuzz","package":"harfbuzz","ranges":[{"type":"GIT","events":[{"introduced":"fb7af519b5a0e2d72b0621c05ba70fb1b2eaacaf"},{"fixed":"6c2107ace765f95c67d65a21f94b54a2f12d80dc"}]}],"versions":["11.5.0","11.5.1","12.0.0","12.1.0","12.2.0","12.3.0","12.3.1","12.3.2","13.0.0","13.0.1","13.1.0","13.1.1","13.2.0","13.2.1","14.0.0","14.1.0","14.2.0","14.2.1","14.3.0","14.3.1"]}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=526770452","tags":["report"]}],"sources":{"osv":[{"id":"OSV-2026-962","title":"Use-of-uninitialized-value in iup_delta_optimize","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=526770452\n\n```\nCrash type: Use-of-uninitialized-value\nCrash state:\niup_delta_optimize\nOT::tuple_delta_t::optimize\nOT::TupleVariationData\u003cOT::NumType\u003ctrue, unsigned short, 2u\u003e\u003e::tuple_variations_\n```\n","status":"published","published":"2026-06-24T00:03:23.338692Z","modified":"2026-06-24T00:03:23.339152Z","updated_at":"2026-11-02T15:52:50.263679Z"}]}}