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CVE-2026-0818

Medium priority
Needs evaluation

CSS-based exfiltration of the content from partially encrypted emails when allowing remote content. This vulnerability affects Thunderbird < 147.0.1 and Thunderbird < 140.7.1.

1 affected package

thunderbird

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
thunderbird Needs evaluation Needs evaluation
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CVE-2026-24869

Medium priority
Vulnerable

Use-after-free in the Layout: Scrolling and Overflow component. This vulnerability affects Firefox < 147.0.2.

9 affected packages

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

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected
thunderbird Not affected Vulnerable
mozjs38 Not in release Not in release Needs evaluation
mozjs52 Not in release Not in release Ignored Ignored
mozjs68 Not in release Not in release Ignored
mozjs78 Not in release Ignored
mozjs91 Not in release Ignored
mozjs102 Ignored Ignored
mozjs115 Ignored Not in release
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CVE-2026-24868

Medium priority
Vulnerable

Mitigation bypass in the Privacy: Anti-Tracking component. This vulnerability affects Firefox < 147.0.2.

9 affected packages

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

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected
thunderbird Not affected Vulnerable
mozjs38 Not in release Not in release Needs evaluation
mozjs52 Not in release Not in release Ignored Ignored
mozjs68 Not in release Not in release Ignored
mozjs78 Not in release Ignored
mozjs91 Not in release Ignored
mozjs102 Ignored Ignored
mozjs115 Ignored Not in release
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CVE-2025-28164

Medium priority
Vulnerable

Buffer Overflow vulnerability in libpng 1.6.43-1.6.46 allows a local attacker to cause a denial of service via png_create_read_struct() function.

5 affected packages

libpng, firefox, thunderbird, chromium-browser, libpng1.6

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
libpng Not in release Not in release
firefox Not affected Not affected
thunderbird Needs evaluation Needs evaluation
chromium-browser Not affected Not affected
libpng1.6 Vulnerable Not affected Not affected Not affected
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CVE-2025-28162

Medium priority
Vulnerable

Buffer Overflow vulnerability in libpng 1.6.43-1.6.46 allows a local attacker to cause a denial of service via the pngimage with AddressSanitizer (ASan), the program leaks memory in various locations, eventually leading to high...

5 affected packages

libpng, firefox, thunderbird, chromium-browser, libpng1.6

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
libpng Not in release Not in release
firefox Not affected Not affected
thunderbird Needs evaluation Needs evaluation
chromium-browser Not affected Not affected
libpng1.6 Vulnerable Not affected Not affected Not affected
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CVE-2026-24515

Medium priority
Needs evaluation

In libexpat before 2.7.4, XML_ExternalEntityParserCreate does not copy unknown encoding handler user data.

23 affected packages

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

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
expat Needs evaluation Needs evaluation Needs evaluation Needs evaluation
apache2 Not affected Not affected Not affected Not affected
apr-util Not affected Not affected Not affected Not affected
cmake Not affected Not affected Not affected Not affected
ghostscript Not affected Not affected Not affected Not affected
texlive-bin Not affected Not affected Not affected Not affected
xmlrpc-c Needs evaluation Needs evaluation Needs evaluation Needs evaluation
vnc4 Not in release Not in release Needs evaluation
wbxml2 Needs evaluation Needs evaluation Needs evaluation Needs evaluation
swish-e Needs evaluation Needs evaluation Needs evaluation Needs evaluation
insighttoolkit4 Not in release Needs evaluation Needs evaluation Needs evaluation
cadaver Needs evaluation Needs evaluation Needs evaluation Needs evaluation
gdcm Not affected Not affected Not affected Needs evaluation
ayttm Not in release Not in release
cableswig Not in release Not in release
coin3 Not affected Not affected Not affected Needs evaluation
matanza Ignored Ignored Ignored Needs evaluation
tdom Needs evaluation Needs evaluation Needs evaluation Needs evaluation
vtk Not in release Not in release
smart Not in release Not in release Needs evaluation
firefox Not affected Not affected
thunderbird Not affected Not affected
libxmltok Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2026-0892

Medium priority
Vulnerable

Memory safety bugs present in Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This...

9 affected packages

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

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected
thunderbird Not affected Vulnerable
mozjs38 Not in release Not in release Needs evaluation
mozjs52 Not in release Not in release Ignored Ignored
mozjs68 Not in release Not in release Ignored
mozjs78 Not in release Ignored
mozjs91 Not in release Ignored
mozjs102 Ignored Ignored
mozjs115 Ignored Not in release
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CVE-2026-0891

Medium priority
Vulnerable

Memory safety bugs present in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been...

9 affected packages

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

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected
thunderbird Not affected Vulnerable
mozjs38 Not in release Not in release Needs evaluation
mozjs52 Not in release Not in release Ignored Ignored
mozjs68 Not in release Not in release Ignored
mozjs78 Not in release Ignored
mozjs91 Not in release Ignored
mozjs102 Ignored Ignored
mozjs115 Ignored Not in release
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CVE-2026-0890

Medium priority
Vulnerable

Spoofing issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.

9 affected packages

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

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

CVE-2026-0889

Medium priority
Vulnerable

Denial-of-service in the DOM: Service Workers component. This vulnerability affects Firefox < 147 and Thunderbird < 147.

9 affected packages

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

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