Usn

USN-8670-3: curl vulnerability Publication date 8 September 2026 Overview curl could be made to expose sensitive information. Releases Packages - curl - HTTP, HTTPS, and FTP client and client libraries Details USN-8670-1 fixed a vulnerability in curl. This update provides the corresponding update for Ubuntu 26.04 LTS. Original advisory 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. USN-8670-1 fixed a vulnerability in curl. This update provides the corresponding update for Ubuntu 26.04 LTS. Original advisory 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. 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 | curl – 8.18.0-1ubuntu2.5 | || | libcurl3t64-gnutls – 8.18.0-1ubuntu2.5 | ||| | libcurl4-gnutls-dev – 8.18.0-1ubuntu2.5 | ||| | libcurl4-openssl-dev – 8.18.0-1ubuntu2.5 | ||| | libcurl4t64 – 8.18.0-1ubuntu2.5 | 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.