CVE-2026-111136

libinstpatch: libInstPatch through 1.1.7 contains a heap out-of-bounds write vulnerability in the SoundFont 2 loader because ipatch...

CVE-2026-111136 is fixed in 5 products on 1 platform, first by DEBIAN-CVE-2026-111136, released November 1, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0020
9th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
libinstpatch · Debian 14 1.1.8-1 DEBIAN-CVE-2026-111136 Nov 1, 2026
libinstpatch · Fedora 43 1.1.8-1.fc43 FEDORA-2026-7F1BCC426B Nov 7, 2026
libinstpatch-debuginfo · Fedora 43 1.1.8-1.fc43 FEDORA-2026-7F1BCC426B Nov 7, 2026
libinstpatch-debugsource · Fedora 43 1.1.8-1.fc43 FEDORA-2026-7F1BCC426B Nov 7, 2026
libinstpatch-devel · Fedora 43 1.1.8-1.fc43 FEDORA-2026-7F1BCC426B Nov 7, 2026
libinstpatch-doc · Fedora 43 1.1.8-1.fc43 FEDORA-2026-7F1BCC426B Nov 7, 2026

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