When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer performs a cross-protocol redirect to a second URL that uses an IMAP, LDAP, POP3 or SMTP scheme, curl might wrongly pass on the bearer token to the new target host.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade curl | May 20, 2026 | Jan 8, 2026 |
| Amazon Linux Ami 2 | — | Upgrade curl-debuginfoUpgrade curlUpgrade libcurlUpgrade libcurl-devel | May 20, 2026 | May 20, 2026 |
| Apple Osx Curl | — | Upgrade macOS to the latest version | Mar 27, 2026 | Mar 24, 2026 |
| Debian | — | Upgrade curl | Jul 12, 2026 | Jul 12, 2026 |
| Freebsd | — | Upgrade curl | Mar 12, 2026 | Mar 11, 2026 |
| Huawei Euleros 2_0_sp10 | — | Upgrade curlUpgrade libcurl | Mar 17, 2026 | Mar 16, 2026 |
| Huawei Euleros 2_0_sp12 | — | Upgrade libcurlUpgrade curl | Mar 17, 2026 | Mar 16, 2026 |
| Huawei Euleros 2_0_sp13 | — | Upgrade libcurlUpgrade curl | Mar 10, 2026 | Mar 10, 2026 |
| Ibm Aix | — | Apply the fix or workaround for curl_advisory9 | Apr 16, 2026 | Apr 15, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Jan 7, 2026 |
| Ubuntu | — | Upgrade libcurl4-openssl-devUpgrade libcurl4Upgrade libcurl4-nss-devUpgrade libcurl4t64Upgrade libcurl4-gnutls-devUpgrade libcurl3-gnutlsUpgrade libcurl3-nssUpgrade curlUpgrade libcurl3t64-gnutls | Feb 26, 2026 | Feb 25, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Jan 8, 2026 |
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