DEBIAN-CVE-2026-90473

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Source
https://security-tracker.debian.org/tracker/CVE-2026-90473
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-90473.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-90473
Upstream
Published
2026-09-12T11:16:34Z
Modified
2026-09-13T05:00:07Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
[none]
Details

msgpack-java through 0.9.12 contains an integer overflow vulnerability in MessageUnpacker.skipValue() when processing MAP32 containers with large element counts. Attackers can supply a MAP32 element count at or above 0x40000000 that wraps when doubled, causing the parser cursor to desynchronize and attacker-controlled data to be returned in place of later fields.

References

Affected packages

Debian:12 / msgpack-java

Package

Name
msgpack-java
Purl
pkg:deb/debian/msgpack-java?arch=source&distro=bookworm

Affected ranges

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

Affected versions

0.*
0.9.3-1
0.9.4-1
0.9.5-1
0.9.6-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-90473.json"

Debian:13 / msgpack-java

Package

Name
msgpack-java
Purl
pkg:deb/debian/msgpack-java?arch=source&distro=trixie

Affected ranges

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

Affected versions

0.*
0.9.6-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-90473.json"

Debian:14 / msgpack-java

Package

Name
msgpack-java
Purl
pkg:deb/debian/msgpack-java?arch=source&distro=forky

Affected ranges

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

Affected versions

0.*
0.9.6-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-90473.json"