UBUNTU-CVE-2026-40930

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Source

https://ubuntu.com/security/CVE-2026-40930

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40930.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-40930

Upstream

CVE-2026-40930

Published

2026-05-20T00:00:00Z

Modified

2026-06-08T09:45:10.937483161Z

Severity

5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

Chunk smuggling in push-mode APNG parser via unconsumed chunk body

References

Affected packages

Ubuntu:Pro:20.04:LTS / libpng1.6

Package

Name: libpng1.6
Purl: pkg:deb/ubuntu/libpng1.6?arch=source&distro=esm-infra%2Ffocal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.6.37-1

1.6.37-2

1.6.37-2ubuntu0.1~esm1

1.6.37-2ubuntu0.1~esm2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libpng-tools",
            "binary_version": "1.6.37-2ubuntu0.1~esm2"
        },
        {
            "binary_name": "libpng16-16",
            "binary_version": "1.6.37-2ubuntu0.1~esm2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40930.json"

Ubuntu:22.04:LTS / libpng1.6

Package

Name: libpng1.6
Purl: pkg:deb/ubuntu/libpng1.6?arch=source&distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.6.37-3build4

1.6.37-3build5

1.6.37-3ubuntu0.1

1.6.37-3ubuntu0.3

1.6.37-3ubuntu0.4

1.6.37-3ubuntu0.5

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libpng-tools",
            "binary_version": "1.6.37-3ubuntu0.5"
        },
        {
            "binary_name": "libpng16-16",
            "binary_version": "1.6.37-3ubuntu0.5"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40930.json"