CVE-2026-32836
mackron / dr_libs dr_flac.h Excessive Memory Allocation in PICTURE Metadata Parsing
CVSS Score
6.2
EPSS Score
0.0%
EPSS Percentile
3th
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.
| CWE | CWE-789 |
| Vendor | mackron |
| Product | dr_libs dr_flac.h |
| Published | Mar 17, 2026 |
| Last Updated | Apr 29, 2026 |
Stay Ahead of the Next One
Get instant alerts for mackron dr_libs dr_flac.h
Be the first to know when new medium vulnerabilities affecting mackron dr_libs dr_flac.h are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
mackron / dr_libs dr_flac.h
0 ≤ 0.13.3
References
github.com: https://github.com/mackron/dr_libs/issues/298 github.com: https://github.com/mackron/dr_libs/commit/fefced4a64adfb1a68a2d31d882366e56096dee8 github.com: https://github.com/mackron/dr_libs/commit/4f5a4cd3b57564d969443c580c75857e039f100a github.com: https://github.com/mackron/dr_libs/commit/663239a3d0460c33bd5b6e5166edcb404e3df676 vulncheck.com: https://www.vulncheck.com/advisories/mackron-dr-libs-excessive-memory-allocation-in-picture-metadata-parsing
Credits
Ana Kapulica