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CVE-2026-2447

Medium priority

Some fixes available 4 of 9

Heap buffer overflow in libvpx. This vulnerability was fixed in Firefox 147.0.4, Firefox ESR 140.7.1, Firefox ESR 115.32.1, Thunderbird 140.7.2, and Thunderbird 147.0.2.

3 affected packages

firefox, libvpx, thunderbird

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected Not affected
libvpx Fixed Fixed Fixed Needs evaluation Needs evaluation
thunderbird Not affected Not affected Vulnerable
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CVE-2026-2032

Medium priority
Vulnerable

Malicious scripts that interrupt new tab page loading could cause desynchronization between the address bar and page content, allowing the attacker to spoof arbitrary HTML under a trusted domain. This vulnerability was fixed in...

9 affected packages

firefox, mozjs102, mozjs115, mozjs38, mozjs52...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected Not affected
mozjs102 Not in release Ignored Ignored
mozjs115 Not in release Ignored Not in release
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
thunderbird Not affected Not affected Vulnerable
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CVE-2026-25646

Medium priority
Fixed

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to 1.6.55, an out-of-bounds read vulnerability exists in the png_set_quantize() API...

5 affected packages

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

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
chromium-browser Not affected Not affected Not affected
firefox Not affected Not affected Not affected
libpng Not in release Not in release Not in release
libpng1.6 Fixed Fixed Fixed Fixed Fixed
thunderbird Not affected Not affected Not affected
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CVE-2026-25210

Medium priority

Some fixes available 12 of 73

In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation.

23 affected packages

apache2, apr-util, ayttm, cableswig, cadaver...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
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
cadaver Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
cmake Not affected Not affected Not affected Not affected Not affected
coin3 Not affected Not affected Not affected Not affected Needs evaluation
expat Not affected Fixed Fixed Fixed Fixed
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 Fixed Fixed Fixed Fixed
matanza Ignored Ignored Ignored Ignored Needs evaluation
smart Not in release Not in release Not in release Needs evaluation
swish-e Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
tdom Needs evaluation Needs evaluation Needs evaluation Needs evaluation 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
wbxml2 Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
xmlrpc-c Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2026-0818

Medium priority
Fixed

When a user explicitly requested Thunderbird to decrypt an inline OpenPGP message that was embedded in a text section of an email that was formatted and styled with HTML and CSS, then the decrypted contents were rendered in a...

1 affected package

thunderbird

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
thunderbird Not affected Fixed
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CVE-2026-24869

Medium priority
Not affected

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

2 affected packages

firefox, thunderbird

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected
thunderbird Not affected Not affected
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CVE-2026-24868

Medium priority
Not affected

Mitigation bypass in the Privacy: Anti-Tracking component. This vulnerability was fixed in Firefox 147.0.2.

2 affected packages

firefox, thunderbird

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected
thunderbird Not affected Not affected
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CVE-2025-28164

Medium priority
Fixed

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

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

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
chromium-browser Not affected Not affected
firefox Not affected Not affected
libpng Not in release Not in release
libpng1.6 Fixed Not affected Not affected Not affected
thunderbird Not affected Not affected
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CVE-2025-28162

Medium priority
Fixed

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

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

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
chromium-browser Not affected Not affected
firefox Not affected Not affected
libpng Not in release Not in release
libpng1.6 Fixed Not affected Not affected Not affected
thunderbird Not affected Not affected
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CVE-2025-59375

Medium priority

Some fixes available 1 of 81

libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.

23 affected packages

apache2, apr-util, ayttm, cableswig, cadaver...

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
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
cadaver Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
cmake Not affected Not affected Not affected Not affected Not affected
coin3 Not affected Not affected Not affected Not affected Needs evaluation
expat Not affected Needs evaluation Needs evaluation Needs evaluation 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
swish-e Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
tdom Needs evaluation Needs evaluation Needs evaluation Needs evaluation 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
wbxml2 Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
xmlrpc-c Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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