A vulnerability was determined in GPAC 26.03-DEV. This affects the function vobsub_read_idx of the file /src/media_tools/vobsub.c of the component MP4Box. Executing a manipulation of the argument num_langs can lead to out-of-bounds read. The attack needs to be launched locally. The exploit has been publicly disclosed and may be utilized. This patch is called 532097084729a936bcdf6a27c41003f3bd7dc3ff. It is best practice to apply a patch to resolve this issue. Two different commits were applied to fix this issue.
https://vuldb.com/vuln/377111/cti
https://vuldb.com/submit/851214
https://vuldb.com/cve/CVE-2026-15185
https://github.com/gpac/gpac/issues/3611
https://github.com/gpac/gpac/commit/aa0fb77b82e51b159a2024c440cdf6b571b14d81
https://github.com/gpac/gpac/commit/532097084729a936bcdf6a27c41003f3bd7dc3ff
Published: 2026-07-09
Updated: 2026-07-09
Base Score: 1.7
Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:P
Severity: Low
Base Score: 3.3
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Severity: Low
Base Score: 4.8
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Severity: Medium