MEDIUM 6.9 NVD
CVE-2026-111136
libInstPatch through 1.1.7 contains a heap out-of-bounds write vulnerability in the SoundFont 2 loader because ipatch_sf2_gen_is_valid() does not range-check ge
libInstPatch through 1.1.7 contains a heap out-of-bounds write vulnerability in the SoundFont 2 loader because ipatch_sf2_gen_is_valid() does not range-check generator IDs before the validity mask test. Attackers can supply crafted SF2 files with out-of-range pgen or igen generator IDs to write attacker-chosen values past the zone genarray, corrupting heap memory and crashing Swami or other consumers.
References
- https://github.com/swami/libinstpatch
- https://github.com/swami/libinstpatch/blob/4ff1939ccc24de204d41b3ab734fc1aece919184/libins
- https://github.com/swami/libinstpatch/blob/4ff1939ccc24de204d41b3ab734fc1aece919184/libins
- https://github.com/swami/libinstpatch/blob/4ff1939ccc24de204d41b3ab734fc1aece919184/libins
- https://hackmd.io/@haind-pwn/libinstpatch-sf2-generator-id-oob-write
This medium severity vulnerability with a CVSS score of 6.9 was published on 2026-10-15 via NVD.
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