Medium severity5.8NVD Advisory· Published Mar 20, 2026· Updated Apr 14, 2026
CVE-2026-33144
CVE-2026-33144
Description
GPAC is an open-source multimedia framework. Prior to commit 86b0e36, a heap-based buffer overflow (write) vulnerability was discovered in GPAC MP4Box. The vulnerability exists in the gf_xml_parse_bit_sequence_bs function in utils/xml_bin_custom.c when processing a crafted NHML file containing malicious <BS> (BitSequence) elements. An attacker can exploit this by providing a specially crafted NHML file, causing an out-of-bounds write on the heap. This issue has been via commit 86b0e36.
Affected products
1Patches
186b0e36ea4c7https://github.com/gpac/gpacvia nvd-ref
Vulnerability mechanics
Generated by null/stub on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.
References
2- github.com/gpac/gpac/commit/86b0e36ea4c71402fbdaf7e13d73ba8841003e72nvdPatch
- github.com/gpac/gpac/security/advisories/GHSA-3jw5-9pmw-vmfgnvdExploitVendor Advisory
News mentions
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