EPSS 0.4%top 73%
Coin3: Expat through 2.8.3 contains an out-of-bounds read vulnerability that allows attackers to trigger memory corruption by processing XML with external… (CVE-2026-76641)
0
MediumVulnerabilityCVE-2026-76641gcveosvubuntu-cve-2026-76641cve-2026-76641ubuntu-pro-14-04-ltsubuntu-pro-16-04-ltsubuntu-16-04-ltsubuntu-pro-18-04-ltsubuntu-18-04-ltsubuntu-pro-20-04-ltsubuntu-20-04-ltsubuntu-22-04-ltsubuntu-pro-22-04-ltsubuntu-24-04-ltsubuntu-pro-24-04-ltsubuntu-26-04-ltsubuntu-pro-26-04-lts
Published: 08/20/2026 (08/20/2026, 18:16:00 UTC)
Source: GCVE Database
Product: coin3
Description
Expat through 2.8.3 contains an out-of-bounds read vulnerability that allows attackers to trigger memory corruption by processing XML with external entity parsers created via XML_ExternalEntityParserCreate. A struct size mismatch between ELEMENT_TYPE members causes storeAtts to read the attIndex member past allocated memory boundaries, resulting in failure to normalize whitespace in non-CDATA attributes or a wild pointer dereference causing a segfault. This vulnerability was introduced by the fix for CVE-2026-66046.
CVSS v3.1
Score 7.5high
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected software
coin3
pkg:deb/ubuntu/coin3?arch=source&distro=esm-infra-legacy/trustyAffected versions
=3.1.4~abc9f50-3=3.1.4~abc9f50-4=3.1.4~abc9f50-4ubuntu2=3.1.4~abc9f50-4ubuntu2+esm1=3.1.4~abc9f50-4ubuntu2+esm2
expat
pkg:deb/ubuntu/expat?arch=source&distro=esm-infra-legacy/trustyAffected versions
=2.1.0-4=2.1.0-4ubuntu1=2.1.0-4ubuntu1.1=2.1.0-4ubuntu1.2=2.1.0-4ubuntu1.3=2.1.0-4ubuntu1.4=2.1.0-4ubuntu1.4+esm1=2.1.0-4ubuntu1.4+esm2=2.1.0-4ubuntu1.4+esm4=2.1.0-4ubuntu1.4+esm6=2.1.0-4ubuntu1.4+esm7=2.1.0-4ubuntu1.4+esm8=2.1.0-4ubuntu1.4+esm9=2.1.0-4ubuntu1.4+esm10=2.1.0-4ubuntu1.4+esm11=2.1.0-4ubuntu1.4+esm12
vnc4
pkg:deb/ubuntu/vnc4?arch=source&distro=esm-infra-legacy/trustyAffected versions
=4.1.1+xorg4.3.0-37ubuntu5=4.1.1+xorg4.3.0-37ubuntu5.0.1=4.1.1+xorg4.3.0-37ubuntu5.0.2=4.1.1+xorg4.3.0-37ubuntu5.0.2+esm1
vtk
pkg:deb/ubuntu/vtk?arch=source&distro=esm-infra-legacy/trustyAffected versions
=5.8.0-14ubuntu1=5.8.0-14ubuntu3=5.8.0-14.1ubuntu2=5.8.0-14.1ubuntu3=5.8.0-14.1ubuntu3+esm1
xmlrpc-c
pkg:deb/ubuntu/xmlrpc-c?arch=source&distro=esm-infra-legacy/trustyAffected versions
=1.16.33-3.2ubuntu3=1.33.06-0ubuntu1=1.33.06-0ubuntu1+esm1
expat
pkg:deb/ubuntu/expat?arch=source&distro=esm-infra-legacy/xenialAffected versions
=2.1.0-7=2.1.0-7ubuntu0.16.04.1=2.1.0-7ubuntu0.16.04.2=2.1.0-7ubuntu0.16.04.3=2.1.0-7ubuntu0.16.04.4=2.1.0-7ubuntu0.16.04.5=2.1.0-7ubuntu0.16.04.5+esm2=2.1.0-7ubuntu0.16.04.5+esm5=2.1.0-7ubuntu0.16.04.5+esm6=2.1.0-7ubuntu0.16.04.5+esm7=2.1.0-7ubuntu0.16.04.5+esm8=2.1.0-7ubuntu0.16.04.5+esm9=2.1.0-7ubuntu0.16.04.5+esm10=2.1.0-7ubuntu0.16.04.5+esm11=2.1.0-7ubuntu0.16.04.5+esm12=2.1.0-7ubuntu0.16.04.5+esm13
ayttm
pkg:deb/ubuntu/ayttm?arch=source&distro=esm-apps-legacy/xenialAffected versions
=0.6.3-3build1=0.6.3-3ubuntu0.1~esm1
cableswig
pkg:deb/ubuntu/cableswig?arch=source&distro=esm-apps-legacy/xenialAffected versions
=0.1.0+git20150808-1=0.1.0+git20150808-2=0.1.0+git20150808-2ubuntu0.1~esm1
cadaver
pkg:deb/ubuntu/cadaver?arch=source&distro=xenialAffected versions
=0.23.3-2ubuntu2
coin3
pkg:deb/ubuntu/coin3?arch=source&distro=esm-apps/xenialAffected versions
=3.1.4~abc9f50+dfsg1-1=3.1.4~abc9f50+dfsg1-1ubuntu0.1~esm1=3.1.4~abc9f50+dfsg1-1ubuntu0.1~esm2
gdcm
pkg:deb/ubuntu/gdcm?arch=source&distro=xenialAffected versions
=2.4.4-4=2.4.4-4build1=2.4.4-4ubuntu1=2.6.1-3=2.6.2-1=2.6.2-2=2.6.2-3=2.6.3-1=2.6.3-1ubuntu1=2.6.3-2ubuntu1=2.6.3-3ubuntu1=2.6.3-3ubuntu3
insighttoolkit4
pkg:deb/ubuntu/insighttoolkit4?arch=source&distro=xenialAffected versions
=4.8.1-1ubuntu3=4.8.1-1ubuntu4=4.8.2-3.1ubuntu1=4.9.0-3ubuntu2=4.9.0-4ubuntu1=4.9.0-4ubuntu1.1
libxmltok
pkg:deb/ubuntu/libxmltok?arch=source&distro=esm-apps/xenialAffected versions
=1.2-3build3=1.2-3ubuntu0.16.04.1~esm1=1.2-3ubuntu0.16.04.1~esm2=1.2-3ubuntu0.16.04.1~esm3=1.2-3ubuntu0.16.04.1~esm4=1.2-3ubuntu0.16.04.1~esm5
matanza
pkg:deb/ubuntu/matanza?arch=source&distro=xenialAffected versions
=0.13+ds1-5
smart
pkg:deb/ubuntu/smart?arch=source&distro=xenialAffected versions
=1.4-2
swish-e
pkg:deb/ubuntu/swish-e?arch=source&distro=esm-apps/xenialAffected versions
=2.4.7-4=2.4.7-4build1=2.4.7-4ubuntu0.1~esm1
tdom
pkg:deb/ubuntu/tdom?arch=source&distro=xenialAffected versions
=0.8.3-1
vnc4
pkg:deb/ubuntu/vnc4?arch=source&distro=esm-apps/xenialAffected versions
=4.1.1+xorg4.3.0-37.3ubuntu2=4.1.1+xorg4.3.0-37.3ubuntu2.1+esm1
vtk
pkg:deb/ubuntu/vtk?arch=source&distro=esm-apps/xenialAffected versions
=5.10.1+dfsg-2=5.10.1+dfsg-2build3=5.10.1+dfsg-2.1build1=5.10.1+dfsg-2.1ubuntu0.1~esm1
wbxml2
pkg:deb/ubuntu/wbxml2?arch=source&distro=xenialAffected versions
=0.10.7-1
xmlrpc-c
pkg:deb/ubuntu/xmlrpc-c?arch=source&distro=esm-apps-legacy/xenialAffected versions
=1.33.14-0.2ubuntu3=1.33.14-1ubuntu1=1.33.14-1ubuntu1+esm1
expat
pkg:deb/ubuntu/expat?arch=source&distro=esm-infra/bionicAffected versions
=2.2.3-1=2.2.3-2=2.2.5-0ubuntu2=2.2.5-3=2.2.5-3ubuntu0.1=2.2.5-3ubuntu0.2=2.2.5-3ubuntu0.4=2.2.5-3ubuntu0.7=2.2.5-3ubuntu0.8=2.2.5-3ubuntu0.9=2.2.5-3ubuntu0.9+esm1=2.2.5-3ubuntu0.9+esm2=2.2.5-3ubuntu0.9+esm3=2.2.5-3ubuntu0.9+esm4
cadaver
pkg:deb/ubuntu/cadaver?arch=source&distro=bionicAffected versions
=0.23.3-2ubuntu3
coin3
pkg:deb/ubuntu/coin3?arch=source&distro=esm-apps/bionicAffected versions
=3.1.4~abc9f50+dfsg1-2=3.1.4~abc9f50+dfsg2-1=3.1.4~abc9f50+dfsg3-1=3.1.4~abc9f50+dfsg3-2=3.1.4~abc9f50+dfsg3-2ubuntu0.1~esm1
gdcm
pkg:deb/ubuntu/gdcm?arch=source&distro=bionicAffected versions
=2.8.2-3build1=2.8.3-1=2.8.4-1=2.8.4-1build2
insighttoolkit4
pkg:deb/ubuntu/insighttoolkit4?arch=source&distro=bionicAffected versions
=4.12.2-dfsg1-1ubuntu1
libxmltok
pkg:deb/ubuntu/libxmltok?arch=source&distro=esm-apps/bionicAffected versions
=1.2-4=1.2-4ubuntu0.18.04.1~esm1=1.2-4ubuntu0.18.04.1~esm2=1.2-4ubuntu0.18.04.1~esm3=1.2-4ubuntu0.18.04.1~esm4=1.2-4ubuntu0.18.04.1~esm5=1.2-4ubuntu0.18.04.1~esm6
matanza
pkg:deb/ubuntu/matanza?arch=source&distro=bionicAffected versions
=0.13+ds1-5build1=0.13+ds1-6
smart
pkg:deb/ubuntu/smart?arch=source&distro=bionicAffected versions
=1.4-2
swish-e
pkg:deb/ubuntu/swish-e?arch=source&distro=esm-apps/bionicAffected versions
=2.4.7-5ubuntu1=2.4.7-5ubuntu1+esm1
tdom
pkg:deb/ubuntu/tdom?arch=source&distro=bionicAffected versions
=0.8.3-1=0.9.0-1
vnc4
pkg:deb/ubuntu/vnc4?arch=source&distro=bionicAffected versions
=4.1.1+xorg4.3.0-37.3ubuntu2
wbxml2
pkg:deb/ubuntu/wbxml2?arch=source&distro=bionicAffected versions
=0.10.7-1=0.10.7-1build1
xmlrpc-c
pkg:deb/ubuntu/xmlrpc-c?arch=source&distro=esm-apps/bionicAffected versions
=1.33.14-7=1.33.14-8=1.33.14-8build1=1.33.14-8ubuntu0.18.04.1~esm1
expat
pkg:deb/ubuntu/expat?arch=source&distro=esm-infra/focalAffected versions
=2.2.7-2=2.2.9-1=2.2.9-1build1=2.2.9-1ubuntu0.2=2.2.9-1ubuntu0.4=2.2.9-1ubuntu0.5=2.2.9-1ubuntu0.6=2.2.9-1ubuntu0.7=2.2.9-1ubuntu0.8=2.2.9-1ubuntu0.8+esm1=2.2.9-1ubuntu0.8+esm2
cadaver
pkg:deb/ubuntu/cadaver?arch=source&distro=focalAffected versions
=0.23.3-2.1build1
insighttoolkit4
pkg:deb/ubuntu/insighttoolkit4?arch=source&distro=focalAffected versions
=4.12.2-dfsg1-4.1ubuntu1=4.13.2-dfsg1-1ubuntu1=4.13.2-dfsg1-4ubuntu1=4.13.2-dfsg1-6=4.13.2-dfsg1-6ubuntu1=4.13.2-dfsg1-8
libxmltok
pkg:deb/ubuntu/libxmltok?arch=source&distro=esm-apps/focalAffected versions
=1.2-4=1.2-4ubuntu0.20.04.1~esm1=1.2-4ubuntu0.20.04.1~esm2=1.2-4ubuntu0.20.04.1~esm3=1.2-4ubuntu0.20.04.1~esm4=1.2-4ubuntu0.20.04.1~esm5=1.2-4ubuntu0.20.04.1~esm6
matanza
pkg:deb/ubuntu/matanza?arch=source&distro=focalAffected versions
=0.13+ds1-6=0.13+ds2-1
swish-e
pkg:deb/ubuntu/swish-e?arch=source&distro=esm-apps/focalAffected versions
=2.4.7-6build1=2.4.7-6build2=2.4.7-6ubuntu0.1~esm1
tdom
pkg:deb/ubuntu/tdom?arch=source&distro=focalAffected versions
=0.9.1-1
wbxml2
pkg:deb/ubuntu/wbxml2?arch=source&distro=focalAffected versions
=0.10.7-1build1
xmlrpc-c
pkg:deb/ubuntu/xmlrpc-c?arch=source&distro=esm-apps/focalAffected versions
=1.33.14-8build1=1.33.14-8build2=1.33.14-8ubuntu0.20.04.1~esm1
cadaver
pkg:deb/ubuntu/cadaver?arch=source&distro=jammyAffected versions
=0.23.3-2.1build1
expat
pkg:deb/ubuntu/expat?arch=source&distro=jammyAffected versions
=2.4.1-2=2.4.1-3=2.4.2-1=2.4.3-1=2.4.3-2=2.4.4-1=2.4.6-1=2.4.7-1=2.4.7-1ubuntu0.1=2.4.7-1ubuntu0.2=2.4.7-1ubuntu0.3=2.4.7-1ubuntu0.4=2.4.7-1ubuntu0.5=2.4.7-1ubuntu0.6=2.4.7-1ubuntu0.7=2.4.7-1ubuntu0.8
insighttoolkit4
pkg:deb/ubuntu/insighttoolkit4?arch=source&distro=jammyAffected versions
=4.13.3withdata-dfsg1-4.1=4.13.3withdata-dfsg2-1ubuntu1
matanza
pkg:deb/ubuntu/matanza?arch=source&distro=jammyAffected versions
=0.13+ds2-1
tdom
pkg:deb/ubuntu/tdom?arch=source&distro=jammyAffected versions
=0.9.2-1
wbxml2
pkg:deb/ubuntu/wbxml2?arch=source&distro=jammyAffected versions
=0.10.7-1build1=0.11.7+dfsg-1
libxmltok
pkg:deb/ubuntu/libxmltok?arch=source&distro=esm-apps/jammyAffected versions
=1.2-4=1.2-4ubuntu0.22.04.1~esm1=1.2-4ubuntu0.22.04.1~esm2=1.2-4ubuntu0.22.04.1~esm3=1.2-4ubuntu0.22.04.1~esm4=1.2-4ubuntu0.22.04.1~esm5=1.2-4ubuntu0.22.04.1~esm6
swish-e
pkg:deb/ubuntu/swish-e?arch=source&distro=esm-apps/jammyAffected versions
=2.4.7-6build3=2.4.7-6.1=2.4.7-6.1build1=2.4.7-6.1ubuntu0.1~esm1
xmlrpc-c
pkg:deb/ubuntu/xmlrpc-c?arch=source&distro=esm-apps/jammyAffected versions
=1.33.14-9=1.33.14-10=1.33.14-10ubuntu0.1~esm1
cadaver
pkg:deb/ubuntu/cadaver?arch=source&distro=nobleAffected versions
=0.24+dfsg-2=0.24+dfsg-3=0.24+dfsg-3build1=0.24+dfsg-3build2
expat
pkg:deb/ubuntu/expat?arch=source&distro=nobleAffected versions
=2.5.0-2=2.6.0-1=2.6.1-2=2.6.1-2build1=2.6.1-2ubuntu0.1=2.6.1-2ubuntu0.2=2.6.1-2ubuntu0.3=2.6.1-2ubuntu0.4=2.6.1-2ubuntu0.5
matanza
pkg:deb/ubuntu/matanza?arch=source&distro=nobleAffected versions
=0.13+ds2-1=0.13+ds2-1build1=0.13+ds2-1build2
tdom
pkg:deb/ubuntu/tdom?arch=source&distro=nobleAffected versions
=0.9.3-1=0.9.3-1build1
wbxml2
pkg:deb/ubuntu/wbxml2?arch=source&distro=nobleAffected versions
=0.11.8+dfsg-3=0.11.8+dfsg-3build1
libxmltok
pkg:deb/ubuntu/libxmltok?arch=source&distro=esm-apps/nobleAffected versions
=1.2-4ubuntu1=1.2-4.1ubuntu1=1.2-4.1ubuntu2=1.2-4.1ubuntu2.24.0.4.1+esm1=1.2-4.1ubuntu2.24.0.4.1+esm2=1.2-4.1ubuntu2.24.0.4.1+esm3=1.2-4.1ubuntu2.24.0.4.1+esm4
swish-e
pkg:deb/ubuntu/swish-e?arch=source&distro=esm-apps/nobleAffected versions
=2.4.7-6.2=2.4.7-6.2build1=2.4.7-6.2build2=2.4.7-6.2build3=2.4.7-6.2ubuntu0.1~esm1
xmlrpc-c
pkg:deb/ubuntu/xmlrpc-c?arch=source&distro=esm-apps/nobleAffected versions
=1.33.14-11=1.33.14-11.1=1.33.14-12=1.33.14-12build1=1.33.14-12build2=1.33.14-12ubuntu0.1~esm1
cadaver
pkg:deb/ubuntu/cadaver?arch=source&distro=resoluteAffected versions
=0.26+dfsg-2=0.28+dfsg-1=0.28+dfsg-2
expat
pkg:deb/ubuntu/expat?arch=source&distro=resoluteAffected versions
=2.7.1-2=2.7.3-1=2.7.4-1=2.7.4-1ubuntu0.1
matanza
pkg:deb/ubuntu/matanza?arch=source&distro=resoluteAffected versions
=0.13+ds2-2=0.13+ds2-2build1
tdom
pkg:deb/ubuntu/tdom?arch=source&distro=resoluteAffected versions
=0.9.5.1-3=0.9.6-2
wbxml2
pkg:deb/ubuntu/wbxml2?arch=source&distro=resoluteAffected versions
=0.11.10+dfsg-2=0.11.10+dfsg-2build1=0.11.10+dfsg-3
xmlrpc-c
pkg:deb/ubuntu/xmlrpc-c?arch=source&distro=resoluteAffected versions
=1.59.03-10.1=1.60.05-1
swish-e
pkg:deb/ubuntu/swish-e?arch=source&distro=esm-apps/resoluteAffected versions
=2.4.7-7=2.4.7-7.1=2.4.7-7.1ubuntu0.1~esm1
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-76641
- Osv Schema Version
- 1.7.0
- Ecosystems
- ["Ubuntu:Pro:14.04:LTS","Ubuntu:Pro:16.04:LTS","Ubuntu:16.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:18.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:Pro:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:Pro:24.04:LTS","Ubuntu:26.04:LTS","Ubuntu:Pro:26.04:LTS"]
- Cvss Version
- 3.1
Threat ID: 6a8c4c4dacd9273b499be137
Added to database: 08/24/2026, 13:51:09 UTC
Last updated: 10/08/2026, 18:48:48 UTC
Views: 48
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