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CVE-2026-56407

Medium priority
Needs evaluation

libexpat before 2.8.2 has an integer overflow in doProlog that is related to storeEntityValue and entity textLen.

23 affected packages

expat, apache2, apr-util, cmake, ghostscript...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
expat Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
apache2 Not affected Not affected Not affected Not affected Not affected
apr-util Not affected Not affected Not affected Not affected Not affected
cmake Not affected Not affected Not affected Not affected Not affected
ghostscript Not affected Not affected Not affected Not affected Not affected
texlive-bin Not affected Not affected Not affected Not affected Not affected
xmlrpc-c Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
vnc4 Not in release Not in release Not in release Needs evaluation
wbxml2 Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
swish-e Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
insighttoolkit4 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
cadaver Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
gdcm Not affected Not affected Not affected Not affected Needs evaluation
ayttm Not in release Not in release Not in release
cableswig Not in release Not in release Not in release
coin3 Not affected Not affected Not affected Not affected Needs evaluation
matanza Ignored Ignored Ignored Ignored Needs evaluation
tdom Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
vtk Not in release Not in release Not in release
smart Not in release Not in release Not in release Needs evaluation
firefox Not affected Not affected Not affected
thunderbird Not affected Not affected Not affected
libxmltok Not in release Needs evaluation Needs evaluation Needs evaluation Needs evaluation
Show all 23 packages Show less packages

CVE-2026-56406

Medium priority
Needs evaluation

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

23 affected packages

expat, apache2, apr-util, cmake, ghostscript...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
expat Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
apache2 Not affected Not affected Not affected Not affected Not affected
apr-util Not affected Not affected Not affected Not affected Not affected
cmake Not affected Not affected Not affected Not affected Not affected
ghostscript Not affected Not affected Not affected Not affected Not affected
texlive-bin Not affected Not affected Not affected Not affected Not affected
xmlrpc-c Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
vnc4 Not in release Not in release Not in release Needs evaluation
wbxml2 Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
swish-e Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
insighttoolkit4 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
cadaver Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
gdcm Not affected Not affected Not affected Not affected Needs evaluation
ayttm Not in release Not in release Not in release
cableswig Not in release Not in release Not in release
coin3 Not affected Not affected Not affected Not affected Needs evaluation
matanza Ignored Ignored Ignored Ignored Needs evaluation
tdom Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
vtk Not in release Not in release Not in release
smart Not in release Not in release Not in release Needs evaluation
firefox Not affected Not affected Not affected
thunderbird Not affected Not affected Not affected
libxmltok Not in release Needs evaluation Needs evaluation Needs evaluation Needs evaluation
Show all 23 packages Show less packages

CVE-2026-56405

Medium priority
Needs evaluation

libexpat before 2.8.2 has an integer overflow in getAttributeId.

23 affected packages

expat, apache2, apr-util, cmake, ghostscript...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
expat Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
apache2 Not affected Not affected Not affected Not affected Not affected
apr-util Not affected Not affected Not affected Not affected Not affected
cmake Not affected Not affected Not affected Not affected Not affected
ghostscript Not affected Not affected Not affected Not affected Not affected
texlive-bin Not affected Not affected Not affected Not affected Not affected
xmlrpc-c Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
vnc4 Not in release Not in release Not in release Needs evaluation
wbxml2 Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
swish-e Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
insighttoolkit4 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
cadaver Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
gdcm Not affected Not affected Not affected Not affected Needs evaluation
ayttm Not in release Not in release Not in release
cableswig Not in release Not in release Not in release
coin3 Not affected Not affected Not affected Not affected Needs evaluation
matanza Ignored Ignored Ignored Ignored Needs evaluation
tdom Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
vtk Not in release Not in release Not in release
smart Not in release Not in release Not in release Needs evaluation
firefox Not affected Not affected Not affected
thunderbird Not affected Not affected Not affected
libxmltok Not in release Needs evaluation Needs evaluation Needs evaluation Needs evaluation
Show all 23 packages Show less packages

CVE-2026-56404

Medium priority
Needs evaluation

libexpat before 2.8.2 has an integer overflow in addBinding.

23 affected packages

expat, apache2, apr-util, cmake, ghostscript...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
expat Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
apache2 Not affected Not affected Not affected Not affected Not affected
apr-util Not affected Not affected Not affected Not affected Not affected
cmake Not affected Not affected Not affected Not affected Not affected
ghostscript Not affected Not affected Not affected Not affected Not affected
texlive-bin Not affected Not affected Not affected Not affected Not affected
xmlrpc-c Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
vnc4 Not in release Not in release Not in release Needs evaluation
wbxml2 Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
swish-e Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
insighttoolkit4 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
cadaver Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
gdcm Not affected Not affected Not affected Not affected Needs evaluation
ayttm Not in release Not in release Not in release
cableswig Not in release Not in release Not in release
coin3 Not affected Not affected Not affected Not affected Needs evaluation
matanza Ignored Ignored Ignored Ignored Needs evaluation
tdom Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
vtk Not in release Not in release Not in release
smart Not in release Not in release Not in release Needs evaluation
firefox Not affected Not affected Not affected
thunderbird Not affected Not affected Not affected
libxmltok Not in release Needs evaluation Needs evaluation Needs evaluation Needs evaluation
Show all 23 packages Show less packages

CVE-2026-56403

Medium priority
Needs evaluation

libexpat before 2.8.2 has an integer overflow in storeAtts.

23 affected packages

expat, apache2, apr-util, cmake, ghostscript...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
expat Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
apache2 Not affected Not affected Not affected Not affected Not affected
apr-util Not affected Not affected Not affected Not affected Not affected
cmake Not affected Not affected Not affected Not affected Not affected
ghostscript Not affected Not affected Not affected Not affected Not affected
texlive-bin Not affected Not affected Not affected Not affected Not affected
xmlrpc-c Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
vnc4 Not in release Not in release Not in release Needs evaluation
wbxml2 Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
swish-e Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
insighttoolkit4 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
cadaver Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
gdcm Not affected Not affected Not affected Not affected Needs evaluation
ayttm Not in release Not in release Not in release
cableswig Not in release Not in release Not in release
coin3 Not affected Not affected Not affected Not affected Needs evaluation
matanza Ignored Ignored Ignored Ignored Needs evaluation
tdom Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
vtk Not in release Not in release Not in release
smart Not in release Not in release Not in release Needs evaluation
firefox Not affected Not affected Not affected
thunderbird Not affected Not affected Not affected
libxmltok Not in release Needs evaluation Needs evaluation Needs evaluation Needs evaluation
Show all 23 packages Show less packages

CVE-2026-56132

Medium priority
Needs evaluation

In libexpat before 2.8.2, there is a heap-based buffer overflow in doProlog in xmlparse.c because scaffold backing array reallocation is mishandled when there is data-structure sharing across parsers.

23 affected packages

expat, apache2, apr-util, cmake, ghostscript...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
expat Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
apache2 Not affected Not affected Not affected Not affected Not affected
apr-util Not affected Not affected Not affected Not affected Not affected
cmake Not affected Not affected Not affected Not affected Not affected
ghostscript Not affected Not affected Not affected Not affected Not affected
texlive-bin Not affected Not affected Not affected Not affected Not affected
xmlrpc-c Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
vnc4 Not in release Not in release Not in release Needs evaluation
wbxml2 Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
swish-e Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
insighttoolkit4 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
cadaver Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
gdcm Not affected Not affected Not affected Not affected Needs evaluation
ayttm Not in release Not in release Not in release
cableswig Not in release Not in release Not in release
coin3 Not affected Not affected Not affected Not affected Needs evaluation
matanza Ignored Ignored Ignored Ignored Needs evaluation
tdom Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
vtk Not in release Not in release Not in release
smart Not in release Not in release Not in release Needs evaluation
firefox Not affected Not affected Not affected
thunderbird Not affected Not affected Not affected
libxmltok Not in release Needs evaluation Needs evaluation Needs evaluation Needs evaluation
Show all 23 packages Show less packages

CVE-2026-56131

Medium priority
Needs evaluation

libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_ResumeParser from within handlers in cases of a policy violation. Thus, a use-after-free can occur (similar to the CVE-2026-50219 situation).

23 affected packages

expat, apache2, apr-util, cmake, ghostscript...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
expat Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
apache2 Not affected Not affected Not affected Not affected Not affected
apr-util Not affected Not affected Not affected Not affected Not affected
cmake Not affected Not affected Not affected Not affected Not affected
ghostscript Not affected Not affected Not affected Not affected Not affected
texlive-bin Not affected Not affected Not affected Not affected Not affected
xmlrpc-c Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
vnc4 Not in release Not in release Not in release Needs evaluation
wbxml2 Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
swish-e Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
insighttoolkit4 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
cadaver Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
gdcm Not affected Not affected Not affected Not affected Needs evaluation
ayttm Not in release Not in release Not in release
cableswig Not in release Not in release Not in release
coin3 Not affected Not affected Not affected Not affected Needs evaluation
matanza Ignored Ignored Ignored Ignored Needs evaluation
tdom Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
vtk Not in release Not in release Not in release
smart Not in release Not in release Not in release Needs evaluation
firefox Not affected Not affected Not affected
thunderbird Not affected Not affected Not affected
libxmltok Not in release Needs evaluation Needs evaluation Needs evaluation Needs evaluation
Show all 23 packages Show less packages

CVE-2026-55204

Medium priority

Some fixes available 4 of 7

HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpack_dht_insert() within src/hpack-tbl.c that fails to validate the return value of hpack_dht_defrag() when the memory pool is...

1 affected package

haproxy

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
haproxy Fixed Fixed Fixed Needs evaluation Needs evaluation
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CVE-2026-55203

Medium priority

Some fixes available 4 of 7

HAProxy through 3.4.0, fixed in commit 5985276, contains an integer overflow vulnerability in the fcgi_conn structure's drl field that allows buffer misparse as new FCGI record headers. When contentLength is 65535...

1 affected package

haproxy

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
haproxy Fixed Fixed Fixed Needs evaluation Needs evaluation
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CVE-2026-50219

Medium priority
Needs evaluation

libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_GetBuffer, XML_Parse, XML_ParseBuffer, XML_ParserFree, or XML_ParserReset from within handlers in cases of a policy violation. Thus, a use-after-free can occur,

23 affected packages

expat, xmlrpc-c, wbxml2, swish-e, cadaver...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
expat Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
xmlrpc-c Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
wbxml2 Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
swish-e Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
cadaver Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
tdom Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
apache2 Not affected Not affected Not affected Not affected Not affected
apr-util Not affected Not affected Not affected Not affected Not affected
ayttm Not in release Not in release Not in release
cableswig Not in release Not in release Not in release
cmake Not affected Not affected Not affected Not affected Not affected
coin3 Not affected Not affected Not affected Not affected Needs evaluation
firefox Not affected Not affected Not affected
gdcm Not affected Not affected Not affected Not affected Needs evaluation
ghostscript Not affected Not affected Not affected Not affected Not affected
insighttoolkit4 Not in release Not in release Needs evaluation Needs evaluation Needs evaluation
libxmltok Not in release Needs evaluation Needs evaluation Needs evaluation Needs evaluation
matanza Ignored Ignored Ignored Ignored Needs evaluation
smart Not in release Not in release Not in release Needs evaluation
texlive-bin Not affected Not affected Not affected Not affected Not affected
thunderbird Not affected Not affected Not affected
vnc4 Not in release Not in release Not in release Needs evaluation
vtk Not in release Not in release Not in release
Show all 23 packages Show less packages