WAV Parsing Vulnerability in libsndfile Affects File Handling
CVE-2026-109828

5.3MEDIUM

Key Information:

Vendor

libsndfile

Status
Libsndfile
Vendor
CVE Published:
13 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-109828?

A vulnerability exists in libsndfile's WAV parsing functionality, specifically within the wavlike_subchunk_parse function in the source file src/wavlike.c. This issue arises from the use of an uninitialized variable, allowing for potential manipulation that may lead to remote code execution. The exploit has been made public, and although the development team was notified early through an issue report, a response has not yet been issued.

Affected Version(s)

libsndfile 1.2.0

libsndfile 1.2.1

libsndfile 1.2.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-109828 - Proof of Concept

References

https://vuldb.com/vuln/417466
vdb-entrytechnical-description
https://vuldb.com/vuln/417466/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-109828
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

suyuanwang (VulDB User)
VulDB CNA Team
.