UBUNTU-CVE-2026-106972

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Source

https://ubuntu.com/security/CVE-2026-106972

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-106972.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-106972

Upstream

CVE-2026-106972

Published

2026-10-30T00:00:00Z

Modified

2026-10-31T03:30:06Z

Severity

Ubuntu - medium

Summary

[none]

Details

Uncontrolled recursion in MessagePack\BufferUnpacker::unpack() in rybakit/msgpack versions prior to 0.11.0 allows attackers to cause a denial of service through memory exhaustion when an application decodes deeply nested, attacker-controlled MessagePack input.

References

Affected packages

Ubuntu:16.04:LTS / msgpack

Package

Name: msgpack
Purl: pkg:deb/ubuntu/msgpack?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.5.7-3ubuntu1

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "libmsgpack3",
            "binary_version":  "0.5.7-3ubuntu1"
        },
        {
            "binary_name":  "libmsgpackc2",
            "binary_version":  "0.5.7-3ubuntu1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-106972.json"