This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-56404 →
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UBUNTU-CVE-2026-56404

libexpat before 2.8.2 has an integer overflow in addBinding.

Original description

The description as published by the source.

libexpat before 2.8.2 has an integer overflow in addBinding.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Ubuntu:Pro:14.04:LTS coin3
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:14.04:LTS expat
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.0-4ubuntu1.4+esm12"}]}]
Ubuntu:Pro:14.04:LTS vnc4
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:14.04:LTS vtk
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:14.04:LTS xmlrpc-c
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:16.04:LTS expat
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.0-7ubuntu0.16.04.5+esm13"}]}]
Ubuntu:Pro:16.04:LTS ayttm
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:16.04:LTS cableswig
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:16.04:LTS cadaver
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:16.04:LTS coin3
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:16.04:LTS gdcm
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:16.04:LTS insighttoolkit4
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:16.04:LTS libxmltok
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-3ubuntu0.1~esm1"}]}]
Ubuntu:16.04:LTS matanza
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:16.04:LTS smart
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:16.04:LTS swish-e
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:16.04:LTS tdom
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:16.04:LTS vnc4
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:16.04:LTS vtk
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:16.04:LTS wbxml2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:16.04:LTS xmlrpc-c
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:18.04:LTS expat
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.5-3ubuntu0.9+esm4"}]}]
Ubuntu:18.04:LTS cadaver
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:18.04:LTS coin3
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS gdcm
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS insighttoolkit4
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:18.04:LTS libxmltok
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-4ubuntu0.18.04.1~esm7"}]}]
Ubuntu:18.04:LTS matanza
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS smart
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:18.04:LTS swish-e
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS tdom
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS vnc4
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS wbxml2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:18.04:LTS xmlrpc-c
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:20.04:LTS expat
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.9-1ubuntu0.8+esm2"}]}]
Ubuntu:20.04:LTS cadaver
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS insighttoolkit4
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:20.04:LTS libxmltok
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-4ubuntu0.20.04.1~esm7"}]}]
Ubuntu:20.04:LTS matanza
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:20.04:LTS swish-e
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS tdom
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS wbxml2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:20.04:LTS xmlrpc-c
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS cadaver
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS expat
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.7-1ubuntu0.8"}]}]
Ubuntu:22.04:LTS insighttoolkit4
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS matanza
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS tdom
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS wbxml2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:22.04:LTS libxmltok
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-4ubuntu0.22.04.1~esm7"}]}]
Ubuntu:Pro:22.04:LTS swish-e
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:22.04:LTS xmlrpc-c
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS cadaver
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS expat
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.1-2ubuntu0.5"}]}]
Ubuntu:24.04:LTS matanza
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS tdom
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS wbxml2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:24.04:LTS libxmltok
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-4.1ubuntu2.24.0.4.1+esm5"}]}]
Ubuntu:Pro:24.04:LTS swish-e
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:24.04:LTS xmlrpc-c
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:25.10 cadaver
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:25.10 expat
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:25.10 matanza
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:25.10 swish-e
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:25.10 tdom
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:25.10 wbxml2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:25.10 xmlrpc-c
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.10 cadaver
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.10 matanza
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.10 swish-e
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.10 tdom
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.10 wbxml2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.10 xmlrpc-c
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS cadaver
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS expat
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.4-1ubuntu0.1"}]}]
Ubuntu:26.04:LTS matanza
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS tdom
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS wbxml2
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS xmlrpc-c
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:26.04:LTS swish-e
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

References

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