Ubuntu Security Notices USN-8670-1 USN-8670-1: curl vulnerability Publication date 24 August 2026 Overview curl could be made to expose sensitive information. Releases 24.04 LTS Open side navigation Close side navigation Packages Details Update instructions References Packages curl - HTTP, HTTPS, and FTP client and client libraries Details Joshua Rogers discovered that curl incorrectly handled reusing connections when client certificate settings changed. This could result in the wrong client certificates being used, contrary to expectations. Joshua Rogers discovered that curl incorrectly handled reusing connections when client certificate settings changed. This could result in the wrong client certificates being used, contrary to expectations. 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 24.04 LTS noble curl – 8.5.0-2ubuntu10.13 libcurl3t64-gnutls – 8.5.0-2ubuntu10.13 libcurl4-gnutls-dev – 8.5.0-2ubuntu10.13 libcurl4-openssl-dev – 8.5.0-2ubuntu10.13 libcurl4t64 – 8.5.0-2ubuntu10.13 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-2026-8932 CVE-2026-8932