CVE-2026-32836
mackron / dr_libs dr_flac.h Excessive Memory Allocation in PICTURE Metadata Parsing
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 6.9EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Lifecycle
17 Mar 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
mackron · dr_libs dr_flac.hWant to know if your infrastructure is exposed to this?
Talk to TrueHacking →References
https://github.com/mackron/dr_libs/commit/4f5a4cd3b57564d969443c580c75857e039f100ahttps://github.com/mackron/dr_libs/commit/663239a3d0460c33bd5b6e5166edcb404e3df676https://github.com/mackron/dr_libs/commit/fefced4a64adfb1a68a2d31d882366e56096dee8https://github.com/mackron/dr_libs/issues/298https://www.vulncheck.com/advisories/mackron-dr-libs-excessive-memory-allocation-in-picture-metadata-parsing