cvedb.io
CVE-2026-27821
HIGH · CVSS 7.8
EPSS exploitation probability: 0%
Published 2026-02-26T00:16:26.813 · Last modified 2026-06-17T10:27:44.520

Summary

GPAC is an open-source multimedia framework. In versions up to and including 26.02.0, a stack buffer overflow occurs during NHML file parsing in `src/filters/dmx_nhml.c`. The value of the xmlHeaderEnd XML attribute is copied from att->value into szXmlHeaderEnd[1000] using strcpy() without any length validation. If the input exceeds 1000 bytes, it overwrites beyond the stack buffer boundary. Commit 9bd7137fded2db40de61a2cf3045812c8741ec52 patches the issue.

Affected products

gpac — gpac

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.