libcurl had a flaw that when instructed to clear proxy authentication credentials which made it not do so, leaving the old credentials around to get used for subsequent transfers that should not know nor use them.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade curl | Jul 6, 2026 | Jul 3, 2026 |
| Amazon_linux_2023 | — | Upgrade libcurl-minimalUpgrade curl-minimal-debuginfoUpgrade libcurl-debuginfoUpgrade curl-debugsourceUpgrade curl-minimalUpgrade libcurlUpgrade curlUpgrade libcurl-minimal-debuginfoUpgrade libcurl-develUpgrade curl-debuginfo | Sep 30, 2026 | Jul 3, 2026 |
| Redhat_linux | — | Upgrade curl-debugsourceUpgrade libcurl-debuginfoUpgrade curlUpgrade curl-debuginfoUpgrade libcurl-minimal-debuginfoUpgrade libcurl-develUpgrade libcurlUpgrade libcurl-minimal | Sep 2, 2026 | Jul 3, 2026 |
| Rocky_linux | — | Upgrade libcurl-minimal-debuginfoUpgrade libcurl-minimalUpgrade curl-debuginfoUpgrade libcurl-debuginfoUpgrade libcurl-develUpgrade curlUpgrade curl-debugsourceUpgrade libcurl | Sep 28, 2026 | Sep 22, 2026 |
| Ubuntu | — | Upgrade libcurl3 (Ubuntu Pro)Upgrade libcurl4-nss-dev (Ubuntu Pro)Upgrade libcurl4 (Ubuntu Pro)Upgrade curlUpgrade libcurl3-nssUpgrade libcurl3t64-gnutlsUpgrade libcurl4-openssl-devUpgrade libcurl4-nss-devUpgrade libcurl4t64Upgrade libcurl3-gnutlsUpgrade libcurl3-nss (Ubuntu Pro)Upgrade libcurl3-gnutls (Ubuntu Pro)Upgrade libcurl4-openssl-dev (Ubuntu Pro)Upgrade libcurl4-gnutls-dev (Ubuntu Pro)Upgrade libcurl4-gnutls-devUpgrade curl (Ubuntu Pro)Upgrade libcurl4 | Jul 1, 2026 | Jun 30, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Aug 13, 2026 | Jul 3, 2026 |
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