UBUNTU-CVE-2026-90472

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Source
https://ubuntu.com/security/CVE-2026-90472
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-90472.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-90472
Upstream
Published
2026-09-12T11:16:00Z
Modified
2026-09-16T11:44:18Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

msgpack-java through 0.9.12 contains a stack overflow vulnerability in MessageUnpacker.unpackValue() that recursively deserializes arrays and maps without nesting depth limits. Attackers can craft payloads with deeply nested arrays to exhaust the deserializing thread's stack and trigger StackOverflowError, causing per-request deserialization failures.

References

Affected packages

Ubuntu:20.04:LTS / msgpack-java

Package

Name
msgpack-java
Purl
pkg:deb/ubuntu/msgpack-java?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.8.18-2
0.8.19-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libmsgpack-java",
            "binary_version": "0.8.19-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-90472.json"

Ubuntu:22.04:LTS / msgpack-java

Package

Name
msgpack-java
Purl
pkg:deb/ubuntu/msgpack-java?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.8.22-2
0.9.0-1
0.9.0-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libmsgpack-java",
            "binary_version": "0.9.0-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-90472.json"

Ubuntu:24.04:LTS / msgpack-java

Package

Name
msgpack-java
Purl
pkg:deb/ubuntu/msgpack-java?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.9.5-1
0.9.6-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libmsgpack-java",
            "binary_version": "0.9.6-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-90472.json"

Ubuntu:26.04:LTS / msgpack-java

Package

Name
msgpack-java
Purl
pkg:deb/ubuntu/msgpack-java?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.9.6-1
0.9.6-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libmsgpack-java",
            "binary_version": "0.9.6-1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-90472.json"