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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 (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.

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Affected products

2
  • Gpac/Gpac2 versions
    cpe:2.3:a:gpac:gpac:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:gpac:gpac:*:*:*:*:*:*:*:*range: <2026-03-17
    • (no CPE)range: < 86b0e36

Patches

Vulnerability mechanics

References

2

News mentions

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