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CVE-2026-109708

Medium priority
Vulnerable

Sandbox escape due to incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, Thunderbird 153.5, and Firefox ESR 115.44.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected Not affected — —
thunderbird Not affected Not affected Vulnerable — —
mozjs38 Not in release Not in release Not in release — Needs evaluation
mozjs52 Not in release Not in release Not in release Ignored Ignored
mozjs68 Not in release Not in release Not in release Ignored —
mozjs78 Not in release Not in release Ignored — —
mozjs91 Not in release Not in release Ignored — —
mozjs102 Not in release Ignored Ignored — —
mozjs115 Not in release Ignored Not in release — —
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CVE-2026-109707

Medium priority
Vulnerable

Sandbox escape due to use-after-free in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, Thunderbird 153.5, and Firefox ESR 115.44.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected Not affected — —
thunderbird Not affected Not affected Vulnerable — —
mozjs38 Not in release Not in release Not in release — Needs evaluation
mozjs52 Not in release Not in release Not in release Ignored Ignored
mozjs68 Not in release Not in release Not in release Ignored —
mozjs78 Not in release Not in release Ignored — —
mozjs91 Not in release Not in release Ignored — —
mozjs102 Not in release Ignored Ignored — —
mozjs115 Not in release Ignored Not in release — —
Show all 9 packages Show less packages

CVE-2026-109706

Medium priority
Vulnerable

Use-after-free in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected Not affected — —
thunderbird Not affected Not affected Vulnerable — —
mozjs38 Not in release Not in release Not in release — Needs evaluation
mozjs52 Not in release Not in release Not in release Ignored Ignored
mozjs68 Not in release Not in release Not in release Ignored —
mozjs78 Not in release Not in release Ignored — —
mozjs91 Not in release Not in release Ignored — —
mozjs102 Not in release Ignored Ignored — —
mozjs115 Not in release Ignored Not in release — —
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CVE-2026-109705

Medium priority
Vulnerable

Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, Thunderbird 153.5, and Firefox...

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected Not affected — —
thunderbird Not affected Not affected Vulnerable — —
mozjs38 Not in release Not in release Not in release — Needs evaluation
mozjs52 Not in release Not in release Not in release Ignored Ignored
mozjs68 Not in release Not in release Not in release Ignored —
mozjs78 Not in release Not in release Ignored — —
mozjs91 Not in release Not in release Ignored — —
mozjs102 Not in release Ignored Ignored — —
mozjs115 Not in release Ignored Not in release — —
Show all 9 packages Show less packages

CVE-2026-109704

Medium priority
Vulnerable

Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected Not affected — —
thunderbird Not affected Not affected Vulnerable — —
mozjs38 Not in release Not in release Not in release — Needs evaluation
mozjs52 Not in release Not in release Not in release Ignored Ignored
mozjs68 Not in release Not in release Not in release Ignored —
mozjs78 Not in release Not in release Ignored — —
mozjs91 Not in release Not in release Ignored — —
mozjs102 Not in release Ignored Ignored — —
mozjs115 Not in release Ignored Not in release — —
Show all 9 packages Show less packages

CVE-2026-77214

Medium priority
Needs evaluation

libexpat before commit 13c5f63 contains a heap buffer over-read vulnerability in xmlparse.c. XML_ParseBuffer advances the parse buffer end with parser->m_bufferEnd += len using a caller-supplied length that is not validated...

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
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CVE-2026-106016

Medium priority
Vulnerable

Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 157.0.1 and Thunderbird 158.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected Not affected — —
thunderbird Not affected Not affected Vulnerable — —
mozjs38 Not in release Not in release Not in release — Needs evaluation
mozjs52 Not in release Not in release Not in release Ignored Ignored
mozjs68 Not in release Not in release Not in release Ignored —
mozjs78 Not in release Not in release Ignored — —
mozjs91 Not in release Not in release Ignored — —
mozjs102 Not in release Ignored Ignored — —
mozjs115 Not in release Ignored Not in release — —
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CVE-2026-103500

Medium priority
Needs evaluation

An attacker could cause a heap buffer overflow by getting a user to open an email that is greater than or equal to 2GB in size. This vulnerability was fixed in Thunderbird 157, Thunderbird 140.17, and Thunderbird 153.4.

1 affected package

thunderbird

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
thunderbird Needs evaluation Needs evaluation Needs evaluation — —
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CVE-2026-102633

Medium priority
Vulnerable

libexpat versions 2.7.2 through 2.8.5 contain an integer overflow vulnerability in expat_realloc() function on 32-bit platforms when computing allocation sizes. Attackers supplying malicious XML to applications parsing with...

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 Vulnerable Vulnerable Not affected 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 Not affected Not affected Not affected Needs evaluation Needs evaluation
vnc4 Not in release Not in release Not in release — Needs evaluation
wbxml2 Not affected Not affected Not affected Needs evaluation Needs evaluation
swish-e Not affected Not affected Not affected Needs evaluation Needs evaluation
insighttoolkit4 Not in release Not in release Not affected Needs evaluation Needs evaluation
cadaver Not affected Not affected Not affected 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 Not affected Not affected Not affected 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 Not affected Not affected Needs evaluation Needs evaluation
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CVE-2026-96869

Medium priority
Vulnerable

Information disclosure in the Networking component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected Not affected — —
thunderbird Not affected Not affected Vulnerable — —
mozjs38 Not in release Not in release Not in release — Needs evaluation
mozjs52 Not in release Not in release Not in release Ignored Ignored
mozjs68 Not in release Not in release Not in release Ignored —
mozjs78 Not in release Not in release Ignored — —
mozjs91 Not in release Not in release Ignored — —
mozjs102 Not in release Ignored Ignored — —
mozjs115 Not in release Ignored Not in release — —
Show all 9 packages Show less packages