7.7
High
CVE-2026-27821 GPAC is an open-source multimedia framework
Description
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 and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| gpac 26.02 | earliest → 26.02.0 | No fix stated |
References
- github.com github.com
- github.com github.com
Timeline
- Published
- Last modified
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