CVE-2026-109828

libsndfile WAV Parsing wavlike.c wavlike_subchunk_parse uninitialized variable

5.3 Medium

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Passive

What an attacker can affect

Confidentiality: Low
Integrity: None
Availability: None

Exploit likelihood

0.29%Down 0.1 points since Oct 14, 2026

What each source reports

CVE List Score used 5.3

libsndfile WAV Parsing wavlike.c wavlike_subchunk_parse uninitialized variable

Record: CVE-2026-109828
CVSS 4.0: 5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:X/RC:C
CVSS 3.0: 4.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:X/RC:C
CVSS 2.0: 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:C
Weakness: CWE-457, CWE-453
Updated: 2026-11-02

EUVDEUVD-2026-98900 5.3

Record: EUVD-2026-98900
CVSS 4.0: 5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
Updated: 2026-11-02

GitHub AdvisoriesGHSA-f48f-2357-x2fh 2.1

A vulnerability was found in libsndfile up to 1.2.2. This issue affects the function...

Record: GHSA-f48f-2357-x2fh
CVSS 4.0: 2.1 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Weakness: CWE-453
Updated: 2026-11-02

NVD 2.1

Record: CVE-2026-109828
CVSS 4.0: 2.1 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness: CWE-453, CWE-457
Updated: 2026-11-02

OSVBELL-CVE-2026-109828 4.3

Record: BELL-CVE-2026-109828
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Updated: 2026-11-02

OSV 2.1

libsndfile WAV Parsing wavlike.c wavlike_subchunk_parse uninitialized variable

Record: CVE-2026-109828
CVSS 4.0: 2.1 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
Weakness: CWE-453, CWE-457
Updated: 2026-11-02

OSVDEBIAN-CVE-2026-109828 2.1

Record: DEBIAN-CVE-2026-109828
CVSS 4.0: 2.1 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Updated: 2026-11-02

OSVUBUNTU-CVE-2026-109828 2.1

Record: UBUNTU-CVE-2026-109828
CVSS 4.0: 2.1 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Updated: 2026-11-02

OSVAZL-108036 No score

CVE-2026-109828 affecting package libsndfile 1.2.2-7

Record: AZL-108036
Updated: 2026-11-02

Affected packages

Affected packages
Package	Affected	Fixed
`libsndfile` Azure Linux:3	through 1.2.2-7	None known
`libsndfile` Alpaquita:23	1.1.0-r2 and later	None known
`libsndfile` Alpaquita:25	1.2.2-r1 and later	None known
`libsndfile` Alpaquita:stream	1.2.0-r1 and later	None known
`libsndfile` Debian:12	All versions, plus listed versions 1.2.0-11.2.0-1+deb12u11.2.2-11.2.2-1+hurd.11.2.2-1+hurd.2 Show 4 moreShow less 1.2.2-1+hurd.31.2.2-21.2.2-31.2.2-4	None known
`libsndfile` Debian:13	All versions, plus listed versions 1.2.2-21.2.2-2+deb13u11.2.2-31.2.2-4	None known
`libsndfile` Debian:14	All versions, plus listed versions 1.2.2-21.2.2-31.2.2-4	None known
`libsndfile` Ubuntu:Pro:14.04:LTS	All versions, plus listed versions 1.0.25-7ubuntu11.0.25-7ubuntu21.0.25-7ubuntu2.11.0.25-7ubuntu2.21.0.25-7ubuntu2.2+esm11.0.25-7ubuntu2.2+esm21.0.25-7ubuntu2.2+esm31.0.25-7ubuntu2.2+esm4	None known
`libsndfile` Ubuntu:Pro:16.04:LTS	All versions, plus listed versions 1.0.25-9.11.0.25-101.0.25-10ubuntu0.16.04.11.0.25-10ubuntu0.16.04.21.0.25-10ubuntu0.16.04.3 Show 4 moreShow less 1.0.25-10ubuntu0.16.04.3+esm11.0.25-10ubuntu0.16.04.3+esm21.0.25-10ubuntu0.16.04.3+esm31.0.25-10ubuntu0.16.04.3+esm4	None known
`libsndfile` Ubuntu:Pro:18.04:LTS	All versions, plus listed versions 1.0.28-41.0.28-4ubuntu0.18.04.11.0.28-4ubuntu0.18.04.21.0.28-4ubuntu0.18.04.2+esm11.0.28-4ubuntu0.18.04.2+esm2	None known

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Affected packages
Package	Affected	Fixed
`libsndfile` Ubuntu:20.04:LTS	All versions, plus listed versions 1.0.28-61.0.28-71.0.28-7ubuntu0.11.0.28-7ubuntu0.21.0.28-7ubuntu0.3	None known
`libsndfile` Ubuntu:22.04:LTS	All versions, plus listed versions 1.0.31-21.0.31-2build11.0.31-2ubuntu0.11.0.31-2ubuntu0.2	None known
`libsndfile` Ubuntu:24.04:LTS	All versions, plus listed versions 1.2.2-11.2.2-1ubuntu21.2.2-1ubuntu31.2.2-1ubuntu41.2.2-1ubuntu51.2.2-1ubuntu5.24.04.1	None known
`libsndfile` Ubuntu:26.10	All versions, plus listed versions 1.2.2-4	None known
`libsndfile` Ubuntu:26.04:LTS	All versions, plus listed versions 1.2.2-31.2.2-4	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-109828 is a medium vulnerability (CVSS 5.3) in libsndfile, published October 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.29%, the 22nd percentile. No source names a fixed version.

References

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