When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer performs a redirect to a second URL, curl could leak that token to the second hostname under some circumstances.
If the hostname that the first request is redirected to has information in the used .netrc file, with either of the `machine` or `default` keywords, curl would pass on the bearer token set for the first host also to the second one.
CVSS Details
- CVSS 3.1 Base Score: 5.3
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade curl | May 20, 2026 | Mar 11, 2026 |
| Apple Osx Curl | — | Upgrade macOS to the latest version | Sep 10, 2026 | Jul 27, 2026 |
| Debian | — | Upgrade curl | Jul 12, 2026 | Jul 12, 2026 |
| Freebsd | — | Upgrade curl | Mar 12, 2026 | Mar 11, 2026 |
| Ibm Aix | — | Apply the fix or workaround for curl_advisory10 | Jun 28, 2026 | Jun 26, 2026 |
| Redhat_linux | — | Upgrade curl-minimal-debuginfoUpgrade libcurl-minimalUpgrade curl-debuginfoUpgrade libcurl-minimal-debuginfoUpgrade libcurl-develUpgrade curl-minimalUpgrade libcurl-debuginfoUpgrade curl-debugsourceUpgrade libcurlNo solution existsUpgrade curl | Jul 17, 2026 | Mar 11, 2026 |
| Rocky_linux | — | Upgrade curl-minimal-debuginfoUpgrade curl-debugsourceUpgrade curl-debuginfoUpgrade libcurlUpgrade libcurl-debuginfoUpgrade curl-minimalUpgrade libcurl-minimalUpgrade libcurl-minimal-debuginfoUpgrade curlUpgrade libcurl-devel | Aug 20, 2026 | Aug 17, 2026 |
| Suse | — | Upgrade libcurl-develUpgrade curl-fish-completionUpgrade libcurl4Upgrade curlUpgrade libcurl4-32bitUpgrade libcurl-mini4Upgrade curl-zsh-completionUpgrade libcurl-devel-docUpgrade libcurl-devel-32bit | Mar 13, 2026 | Mar 12, 2026 |
| Ubuntu | — | Upgrade libcurl3-nss (Ubuntu Pro)Upgrade libcurl3-gnutls (Ubuntu Pro)Upgrade curl (Ubuntu Pro)Upgrade libcurl3-gnutlsUpgrade libcurl3t64-gnutlsUpgrade libcurl4 (Ubuntu Pro)Upgrade libcurl4t64Upgrade libcurl4Upgrade curlUpgrade libcurl3-nss | Mar 12, 2026 | Mar 11, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Mar 11, 2026 |
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