CVE reports

The Common Vulnerabilities and Exposures (CVE) system is used to identify, define, and catalog publicly disclosed cybersecurity vulnerabilities. Canonical keeps track of all CVEs affecting Ubuntu, and releases a security notice when an issue is fixed. You can find additional guidance for high-profile vulnerabilities in the Ubuntu Vulnerability Knowledge Base section

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Recent CVEs

CVE-2026-43618

High priority

Some fixes available 4 of 8

Rsync version 3.4.2 and prior contain an integer overflow vulnerability in the compressed-token decoder where a 32-bit signed counter is not checked for overflow, allowing a malicious sender to trigger an overflow that causes the...

1 affected package

rsync

CVE-2026-33278

High priority

Some fixes available 3 of 4

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

CVE-2026-29518

High priority

Some fixes available 4 of 8

An rsync daemon configured with "use chroot = no" is exposed to a time-of-check / time-of-use race on parent path components. A local attacker with write access to a module can replace a parent directory component with a symlink...

1 affected package

rsync

CVE-2026-46333

High priority
Vulnerable

In the Linux kernel, the following vulnerability has been resolved: ptrace: slightly saner 'get_dumpable()' logic The 'dumpability' of a task is fundamentally about the memory image of the task - the concept comes from whether it...

161 affected packages

linux, linux-hwe, linux-hwe-5.4, linux-hwe-5.8, linux-hwe-5.11...

CVE-2026-42945

High priority

Some fixes available 4 of 8

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module. This vulnerability exists when the rewrite directive is followed by a rewrite, if, or set directive and an unnamed Perl-Compatible...

1 affected package

nginx

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