Ubuntu Security Notices USN-8356-1 USN-8356-1: GNU SASL vulnerability Publication date 1 June 2026 Overview GNU SASL could be made to crash if it received specially crafted input. Releases 26.04 LTS 25.10 24.04 LTS Open side navigation Close side navigation Packages Details Update instructions References Packages gsasl - Simple Authentication and Security Layer framework Details It was discovered that GNU SASL did not properly handle certain DIGEST-MD5 tokens. An attacker could possibly use this issue to cause GNU SASL to crash, resulting in a denial of service. It was discovered that GNU SASL did not properly handle certain DIGEST-MD5 tokens. An attacker could possibly use this issue to cause GNU SASL to crash, resulting in a denial of service. Update instructions In general, a standard system update will make all the necessary changes. Learn more about how to get the fixes. The problem can be corrected by updating your system to the following package versions: Ubuntu Release Package Version 26.04 LTS resolute gsasl – 2.2.2-4ubuntu1.1 libgsasl18 – 2.2.2-4ubuntu1.1 25.10 questing gsasl – 2.2.2-2ubuntu1.1 libgsasl18 – 2.2.2-2ubuntu1.1 24.04 LTS noble gsasl – 2.2.1-1willsync1ubuntu0.1 libgsasl18 – 2.2.1-1willsync1ubuntu0.1 Reduce your security exposure Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines. Get Ubuntu Pro References CVE-2026-48829 CVE-2026-48829