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CVE-2026-40930

Medium priority
Not affected

Chunk smuggling in push-mode APNG parser via unconsumed chunk body

5 affected packages

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

Package 16.04 LTS
libpng Not affected
libpng1.6
firefox
thunderbird
chromium-browser
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CVE-2026-40622

Medium priority
Needs evaluation

NLnet Labs Unbound 1.16.2 up to and including version 1.25.0 has a vulnerability of the 'ghost domain names' family of attacks that could extend the ghost domain window by up to one cached TTL configured value. Similar to other...

1 affected package

unbound

Package 16.04 LTS
unbound Needs evaluation
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CVE-2026-3593

Medium priority
Not affected

A use-after-free vulnerability exists within the DNS-over-HTTPS implementation. This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1. BIND 9 versions 9.18.0 through...

3 affected packages

isc-dhcp, bind9, bind9-libs

Package 16.04 LTS
isc-dhcp Not affected
bind9 Not affected
bind9-libs
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CVE-2026-3592

Medium priority
Needs evaluation

BIND resolvers are vulnerable to an amplified resource consumption/exhaustion attack. If a victim resolver makes a query to a specially crafted zone, the resolver will consume disproportionate resources. This issue affects BIND 9...

3 affected packages

bind9, isc-dhcp, bind9-libs

Package 16.04 LTS
bind9 Needs evaluation
isc-dhcp Not affected
bind9-libs
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CVE-2026-33278

High priority
Not affected

NLnet Labs Unbound 1.19.1 up to and including version 1.25.0 has a vulnerability in the DNSSEC validator that enables denial of service and possible remote code execution as a result of deep copying a data structure and...

1 affected package

unbound

Package 16.04 LTS
unbound Not affected
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CVE-2026-32792

Medium priority
Needs evaluation

NLnet Labs Unbound 1.6.2 up to and including version 1.25.0 has a denial of service vulnerability when compiled with DNSCrypt support ('--enable-dnscrypt'). A bad DNSCrypt query could underflow Unbound's DNSCrypt packet reading...

1 affected package

unbound

Package 16.04 LTS
unbound Needs evaluation
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CVE-2026-3039

Medium priority
Needs evaluation

BIND servers that are configured to use TKEY-based authentication via GSS-API tokens are vulnerable to excessive memory consumption when receiving and processing maliciously-constructed packets. Typically these servers will be...

3 affected packages

isc-dhcp, bind9, bind9-libs

Package 16.04 LTS
isc-dhcp Not affected
bind9 Needs evaluation
bind9-libs
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CVE-2026-29518

High priority
Fixed

Rsync versions before 3.4.3 contain a time-of-check to time-of-use (TOCTOU) race condition in daemon file handling that allows attackers to redirect file writes outside intended directories by replacing parent directory components...

1 affected package

rsync

Package 16.04 LTS
rsync Fixed
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CVE-2026-5090

Medium priority
Needs evaluation

Template::Plugin::HTML versions through 3.102 for Perl allows HTML and JavaScript to be injected. The html_filter function did not escape single quotes. HTML attributes inside of single quotes could be have code injected. For...

1 affected package

libtemplate-perl

Package 16.04 LTS
libtemplate-perl Needs evaluation
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CVE-2026-23558

Medium priority
Needs evaluation

The adjustments made for XSA-379 as well as those subsequently becoming XSA-387 still left a race window, when a HVM or PVH guest does a grant table version change from v2 to v1 in parallel with mapping the status page(s) via...

1 affected package

xen

Package 16.04 LTS
xen Needs evaluation
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