Vulnerability Description
dr_libs dr_flac.h version 0.13.3 and earlier (fixed in commits fefced4, 4f5a4cd, and 663239a) contain an uncontrolled memory allocation vulnerability in drflac__read_and_decode_metadata() that allows attackers to trigger excessive memory allocation by supplying crafted PICTURE metadata blocks. Attackers can exploit attacker-controlled mimeLength and descriptionLength fields to cause denial of service through memory exhaustion when processing FLAC streams with metadata callbacks.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mackron | Dr Libs | <= 0.13.3 |
Related Weaknesses (CWE)
References
- https://github.com/mackron/dr_libs/commit/4f5a4cd3b57564d969443c580c75857e039f10
- https://github.com/mackron/dr_libs/commit/663239a3d0460c33bd5b6e5166edcb404e3df6
- https://github.com/mackron/dr_libs/commit/fefced4a64adfb1a68a2d31d882366e56096de
- https://github.com/mackron/dr_libs/issues/298ExploitIssue TrackingMitigation
- https://www.vulncheck.com/advisories/mackron-dr-libs-excessive-memory-allocationThird Party Advisory
FAQ
What is CVE-2026-32836?
CVE-2026-32836 is a vulnerability with a CVSS score of 6.2 (MEDIUM). dr_libs dr_flac.h version 0.13.3 and earlier (fixed in commits fefced4, 4f5a4cd, and 663239a) contain an uncontrolled memory allocation vulnerability in drflac__read_and_decode_metadata() that allows ...
How severe is CVE-2026-32836?
CVE-2026-32836 has been rated MEDIUM with a CVSS base score of 6.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-32836?
Check the references section above for vendor advisories and patch information. Affected products include: Mackron Dr Libs.