CVE-2026-27821

CVSS

No CVSS.

G

PAC 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.

References

Link	Resource
https://github.com/gpac/gpac/commit/9bd7137fded2db40de61a2cf3045812c8741ec52
https://github.com/gpac/gpac/security/advisories/GHSA-q7qh-8r2r-q559
https://github.com/gpac/gpac/security/advisories/GHSA-q7qh-8r2r-q559

Configurations

No configuration.

History

26 Feb 2026, 16:24

Type	Values Removed	Values Added
References	~~() https://github.com/gpac/gpac/security/advisories/GHSA-q7qh-8r2r-q559 -~~	() https://github.com/gpac/gpac/security/advisories/GHSA-q7qh-8r2r-q559 -

26 Feb 2026, 00:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-26 00:16

Updated : 2026-02-27 14:06

NVD link : CVE-2026-27821

Mitre link : CVE-2026-27821

CVE.ORG link : CVE-2026-27821

JSON object : View

Products Affected

No product.

CWE

CWE-121

Stack-based Buffer Overflow

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