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CVE-2026-43617

Medium priority
Needs evaluation

Rsync versionĀ 3.4.2 and prior contain an authorization bypass vulnerability in the rsync daemon's hostname-based access control list enforcement when configured with chroot. Attackers can bypass hostname-based deny rules...

1 affected package

rsync

Package 16.04 LTS
rsync Needs evaluation
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CVE-2026-42960

Medium priority
Needs evaluation

NLnet Labs Unbound up to and including version 1.25.0 is vulnerable to poisoning via promiscuous records for the authority section. Promiscuous RRSets that complement DNS replies in the authority section can be used to trick...

1 affected package

unbound

Package 16.04 LTS
unbound Needs evaluation
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CVE-2026-42959

Medium priority
Needs evaluation

NLnet Labs Unbound up to and including version 1.25.0 has a denial of service vulnerability in the DNSSEC validator that can lead to a crash given malicious upstream replies. When Unbound constructs chase-reply messages for...

1 affected package

unbound

Package 16.04 LTS
unbound Needs evaluation
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CVE-2026-42944

Medium priority
Needs evaluation

NLnet Labs Unbound 1.14.0 up to and including version 1.25.0 has a vulnerability that results in heap overflow when encoding multiple NSID and/or DNS Cookie EDNS and/or EDNS Padding options in the reply packet. The relevant...

1 affected package

unbound

Package 16.04 LTS
unbound Needs evaluation
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CVE-2026-42923

Medium priority
Needs evaluation

NLnet Labs Unbound up to and including version 1.25.0 has a vulnerability in the DNSSEC validator where the code path to consult the negative cache for DS records does not take into account the limit on NSEC3 hash calculations...

1 affected package

unbound

Package 16.04 LTS
unbound Needs evaluation
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CVE-2026-42534

Medium priority
Needs evaluation

NLnet Labs Unbound up to and including version 1.25.0 has a vulnerability in the jostle logic that could defeat its purpose and degrade resolution performance. Retransmits of the same query could renew the age of slow running...

1 affected package

unbound

Package 16.04 LTS
unbound Needs evaluation
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CVE-2026-41292

Medium priority
Needs evaluation

NLnet Labs Unbound up to and including version 1.25.0 is vulnerable to a degradation of service attack related to parsing long lists of incoming EDNS options. An adversary sending queries with too many EDNS options can hold...

1 affected package

unbound

Package 16.04 LTS
unbound Needs evaluation
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CVE-2026-40930

Medium priority
Needs evaluation

[Unknown description]

5 affected packages

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

Package 16.04 LTS
libpng Needs evaluation
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

Heap use-after-free vulnerability in BIND 9 DNS-over-HTTPS implementation

3 affected packages

bind9, isc-dhcp, bind9-libs

Package 16.04 LTS
bind9 Not affected
isc-dhcp Not affected
bind9-libs
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