{"id":"OSV-2026-1220","aliases":[],"status":"published","title":"Use-of-uninitialized-value in str_escape","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=554268877\n\n```\nCrash type: Use-of-uninitialized-value\nCrash state:\nstr_escape\nmrb_vm_exec\nyield_with_attr\n```","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2026-08-31T00:03:15.841689Z","modified":"2026-09-11T14:26:10Z","affected":[{"source":"osv","ecosystem":"OSS-Fuzz","package":"mruby","ranges":[{"type":"GIT","events":[{"introduced":"18c43c2a5add8cbd91f094b08bb4fc291a019a82"},{"fixed":"cafbd6691d971b110dcaedf64b37833d7a4f34cf"}]}],"versions":["4.0.0","4.0.0-rc","4.0.0-rc2","4.0.0-rc3","4.0.0-rc4","4.1.0-rc","4.1.0-rc2"]}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=554268877","tags":["report"]}],"sources":{"osv":[{"id":"OSV-2026-1220","title":"Use-of-uninitialized-value in str_escape","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=554268877\n\n```\nCrash type: Use-of-uninitialized-value\nCrash state:\nstr_escape\nmrb_vm_exec\nyield_with_attr\n```\n","status":"published","published":"2026-08-31T00:03:15.841689Z","modified":"2026-09-11T14:26:10.616202Z","updated_at":"2026-11-02T15:52:50.263679Z"}]}}