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-2026-33945

High priority
Needs evaluation

Incus is a system container and virtual machine manager. Incus instances have an option to provide credentials to systemd in the guest. For containers, this is handled through a shared directory. Prior to version 6.23.0, an...

2 affected packages

incus, lxd

CVE-2025-31277

High priority

Some fixes available 3 of 17

security update

5 affected packages

webkitgtk, webkit2gtk, qtwebkit-source, qtwebkit-opensource-src, wpewebkit

CVE-2018-25223

High priority
Needs evaluation

Crashmail 1.6 contains a stack-based buffer overflow vulnerability that allows remote attackers to execute arbitrary code by sending malicious input to the application. Attackers can craft payloads with ROP chains to achieve code...

1 affected package

crashmail

CVE-2026-33186

High priority
Needs evaluation

gRPC-Go is the Go language implementation of gRPC. Versions prior to 1.79.3 have an authorization bypass resulting from improper input validation of the HTTP/2 `:path` pseudo-header. The gRPC-Go server was too lenient in...

2 affected packages

golang-google-grpc, google-guest-agent

CVE-2026-23268

High priority

Some fixes available 75 of 142

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix unprivileged local user can do privileged policy management An unprivileged local user can load, replace, and remove profiles by opening the...

157 affected packages

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

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