CVE-2026-109828
Received Received - Intake

Use of Uninitialized Variable in libsndfile WAV Parsing

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: VulDB

Description
A vulnerability was found in libsndfile up to 1.2.2. This issue affects the function wavlike_subchunk_parse of the file src/wavlike.c of the component WAV Parsing. Performing a manipulation results in use of uninitialized variable. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

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Meta Information

Published
2026-10-13
Last Modified
2026-10-13
Generated
2026-10-13
AI Q&A
2026-10-13
EPSS Evaluated
N/A
NVD
CVE-2026-109828
EUVD
EUVD-2026-98900

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
n/a libsndfile 1.2.0
n/a libsndfile 1.2.1
n/a libsndfile 1.2.2

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-457 The code uses a variable that has not been initialized, leading to unpredictable or unintended results.
CWE-453 The product, by default, initializes an internal variable with an insecure or less secure value than is possible.

Attack-Flow Graph

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Executive Summary

This vulnerability exists in libsndfile versions up to 1.2.2, specifically in the WAV Parsing component. It involves a use of uninitialized variable in the function wavlike_subchunk_parse within src/wavlike.c. An attacker could manipulate this to exploit the uninitialized memory, potentially leading to unintended behavior or information disclosure.

Impact Analysis

The vulnerability allows remote attackers to exploit uninitialized memory, which could result in information leakage or unexpected program behavior. Since the exploit is public, attackers could use it to compromise systems running vulnerable versions of libsndfile. Users should update to the latest version to mitigate this risk.

Compliance Impact

This vulnerability could lead to unauthorized data access or disclosure, which may violate GDPR's data protection requirements or HIPAA's safeguards for protected health information. Organizations must address this flaw to maintain compliance with these regulations.

Mitigation Strategies

Immediately update libsndfile to the latest version beyond 1.2.2 to address the uninitialized variable issue in the WAV parsing function. If an update is not available, consider disabling or restricting access to applications using libsndfile until a patch is released.

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