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
1 - 10 of 2740 results
13 November 2026
Several security issues were fixed in the Linux kernel.
- Ubuntu 22.04 LTS
CVE ID
CVE-2026-63940, CVE-2026-98432, CVE-2026-74350 + 2 others
12 November 2026
Several security issues were fixed in Apache HTTP Server.
- Ubuntu 26.10 ,
- 26.04 LTS,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2026-42356, CVE-2026-119618, CVE-2026-109163 + 2 others
12 November 2026
gevent could allow unintended access to network services.
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
12 November 2026
tough-cookie could be made to modify application data if it received specially crafted cookies.
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS
CVE ID
12 November 2026
libjwt could be made to accept forged tokens.
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS
CVE ID
12 November 2026
Several security issues were fixed in the Linux kernel.
- Ubuntu 22.04 LTS
CVE ID
CVE-2026-97981, CVE-2026-98290, CVE-2026-68329 + 3610 others
12 November 2026
Several security issues were fixed in Pillow.
- Ubuntu 26.10 ,
- 26.04 LTS,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS,
- 14.04 LTS
CVE ID
CVE-2026-96639, CVE-2026-96642, CVE-2026-112395 + 36 others
12 November 2026
Several security issues were fixed in GNU C Library.
- Ubuntu 26.10 ,
- 26.04 LTS,
- 24.04 LTS,
- 22.04 LTS
CVE ID
CVE-2026-18374, CVE-2026-89092, CVE-2026-86805 + 4 others
11 November 2026
ruby-jwt could allow unintended access to network services.
- Ubuntu 26.04 LTS,
- 24.04 LTS,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
11 November 2026
Several security issues were fixed in MySQL.
- Ubuntu 26.10 ,
- 26.04 LTS,
- 24.04 LTS,
- 22.04 LTS
CVE ID
CVE-2026-101727, CVE-2026-101617, CVE-2026-101779 + 70 others
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