Ubuntu Security Notices
Developers issue an Ubuntu Security Notice when a security issue is fixed in an official Ubuntu package. You can find additional guidance for high-profile vulnerabilities in the Ubuntu Vulnerability Knowledge Base section.
To report a security vulnerability in an Ubuntu package, please contact the Security Team.
The Security Team also produces OVAL files for each Ubuntu release. These are an industry-standard machine-readable format dataset that contain details of all known security vulnerabilities and fixes relevant to the Ubuntu release, and can be used to determine whether a particular patch is appropriate. OVAL files can also be used to audit a system to check whether the latest security fixes have been applied.
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USN ID, name, description or CVE ID contains
11 - 20 of 11527 results
3 November 2026
The Gin CORS middleware could allow unintended access to network services.
- Ubuntu 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS
CVE ID
3 November 2026
feh could be made to crash or run programs as your login if it received specially crafted input.
- Ubuntu 16.04 LTS
CVE ID
3 November 2026
Enlightenment could be made to run programs as an administrator if it received a specially crafted pathname.
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
3 November 2026
Several security issues were fixed in DMitry.
- Ubuntu 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
3 November 2026
Several security issues were fixed in Deluge.
- Ubuntu 16.04 LTS
CVE ID
3 November 2026
CakePHP could be made to trust a spoofed client IP address.
- Ubuntu 16.04 LTS
CVE ID
3 November 2026
Several security issues were fixed in BitlBee.
- Ubuntu 16.04 LTS
CVE ID
3 November 2026
Apt-Cacher could be made to return specially crafted HTTP responses.
- Ubuntu 16.04 LTS
CVE ID
3 November 2026
Several security issues were fixed in Yaws.
- Ubuntu 20.04 LTS,
- 16.04 LTS
CVE ID
3 November 2026
Several security issues were fixed in Rack.
- Ubuntu 26.04 LTS
CVE ID
CVE-2026-26961, CVE-2026-34831, CVE-2026-34763 + 10 others
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