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CVE-2026-32836

MEDIUM CVSS 4.0: 6.9 EPSS 0.01%
Updated Mar 20, 2026
Mackron
Parameter Value
CVSS 6.9 (MEDIUM)
Affected Versions before 0.13.3
Type CWE-789
Vendor Mackron
Public PoC No

dr_libs dr_flac.h version 0.13.3 and earlier 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.

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service

CVSS Vector v4.0

Weakness Type (CWE)

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Mackron Dr_Libs
cpe:2.3:a:mackron:dr_libs:*:*:*:*:*:*:*:*
<= 0.13.3