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-2026-43500

High priority
Needs evaluation

rxrpc: Also unshare DATA/RESPONSE packets when paged frags are present

157 affected packages

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

CVE-2026-43284

High priority
Needs evaluation

In the Linux kernel, the following vulnerability has been resolved: xfrm: esp: avoid in-place decrypt on shared skb frags MSG_SPLICE_PAGES can attach pages from a pipe directly to an skb. TCP marks such skbs with SKBFL_SHARED_FRAG...

157 affected packages

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

CVE-2026-23918

High priority
Fixed

http2: double free and possible RCE on early reset

1 affected package

apache2

CVE-2026-41651

High priority
Fixed

security update

1 affected package

packagekit

CVE-2026-31431

High priority
Vulnerable

In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly reverts commit 72548b093ee3 except for the copying of the associated data. There is no benefit...

157 affected packages

linux-hwe, linux-hwe-5.4, linux-hwe-5.8, linux-hwe-5.11, linux-hwe-5.13...

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