DEBIAN-CVE-2026-56406

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Source
https://security-tracker.debian.org/tracker/CVE-2026-56406
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56406.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-56406
Upstream
Published
2026-06-21T16:16:27Z
Modified
2026-09-14T17:00:28Z
Severity
  • 6.9 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L CVSS Calculator
Summary
[none]
Details

libexpat before 2.8.2 has an integer overflow in XML_ParseBuffer because it lacked a check that was present in XML_Parse.

References

Affected packages

Debian:12 / expat

Package

Name
expat
Purl
pkg:deb/debian/expat?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.5.0-1+deb12u3

Affected versions

2.*
2.5.0-1
2.5.0-1+deb12u1
2.5.0-1+deb12u2

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56406.json"

Debian:13 / expat

Package

Name
expat
Purl
pkg:deb/debian/expat?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.8.2-1~deb13u1

Affected versions

2.*
2.7.1-2
2.7.2-1
2.7.3-1
2.7.3-2
2.7.4-1
2.7.5-1
2.8.0-1
2.8.0-2
2.8.1-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56406.json"

Debian:14 / expat

Package

Name
expat
Purl
pkg:deb/debian/expat?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.8.2-1

Affected versions

2.*
2.7.1-2
2.7.2-1
2.7.3-1
2.7.3-2
2.7.4-1
2.7.5-1
2.8.0-1
2.8.0-2
2.8.1-1
2.8.2-1~deb13u1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56406.json"