What’s Vulnerable › Vulnerabilities

CVE-2026-15185: GPAC MP4Box vobsub.c vobsub_read_idx out-of-bounds

• Severity: low (CVSS 3.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-09 · updated 2026-07-09
• Weakness: CWE-119

Description

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.

Affected products

• GPAC: 26.03-DEV

References

• https://github.com/gpac/gpac/
• https://github.com/gpac/gpac/commit/532097084729a936bcdf6a27c41003f3bd7dc3ff
• https://github.com/gpac/gpac/commit/aa0fb77b82e51b159a2024c440cdf6b571b14d81
• https://github.com/gpac/gpac/issues/3611
• https://vuldb.com/cve/CVE-2026-15185
• https://vuldb.com/submit/851214
• https://vuldb.com/vuln/377111
• https://vuldb.com/vuln/377111/cti

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