CVE Database›CVE-2025-56226

CVE-2025-56226

libsndfile: memory leak when encoding MP3 files due to an incomplete initialization

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Severity

Moderate

Red Hat Product Security

5.3

CVSS 3.1

Review impact separately from score.

Published · January 14, 2026

Updated · June 28, 2026

Description

A flaw was found in the libsndfile library. This issue occurs when encoding MP3 files. During initialization, when an unsupported sample rate is detected, encoding resources are not released within the error-handling path due to an incomplete initialization, impacting system performance and resulting in a denial of service.

Statement

To exploit this flaw, an attacker needs to be able to process a malicious MP3 file with an application linked to the libsndfile library. Also, the only security impact of this issue is a high consumption of system memory that eventually can cause an application crash and result in a denial of service, there is no memory corruption or arbitrary code execution. Due to these reasons, this vulnerability has been rated with a moderate severity.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Do not process untrusted MP3 files with the libsndfile library.

CVSS / CWE

CVSS 3.1 · 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE-401 · Missing Release of Memory after Effective Lifetime