An authentication bypass vulnerability exists libcurl <8.0.0 in the connection reuse feature which can reuse previously established connections with incorrect user permissions due to a failure to check for changes in the CURLOPT_GSSAPI_DELEGATION option. This vulnerability affects krb5/kerberos/negotiate/GSSAPI transfers and could potentially result in unauthorized access to sensitive information. The safest option is to not reuse connections if the CURLOPT_GSSAPI_DELEGATION option has been changed.
CVSS Details
- CVSS 3.1 Base Score: 5.9
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade libcurl-minimalUpgrade curl-minimalUpgrade libcurl-develUpgrade curlUpgrade libcurl | Aug 10, 2023 | Mar 30, 2023 |
| Alpine Linux | — | Upgrade curl | Mar 26, 2024 | Mar 30, 2023 |
| Amazon Linux Ami 2 | — | Upgrade libcurl-develUpgrade libcurlUpgrade curl-debuginfoUpgrade curl | Jun 8, 2023 | Mar 30, 2023 |
| Amazon_linux | — | Upgrade curl | Apr 21, 2023 | Mar 21, 2023 |
| Amazon_linux_2023 | — | Upgrade libcurl-debuginfoUpgrade libcurlUpgrade curl-minimal-debuginfoUpgrade curlUpgrade libcurl-develUpgrade curl-debuginfoUpgrade curl-debugsourceUpgrade libcurl-minimalUpgrade libcurl-minimal-debuginfoUpgrade curl-minimal | Feb 17, 2025 | Mar 20, 2023 |
| Centos_linux | — | Upgrade curl-debuginfoUpgrade libcurl-minimal-debuginfoUpgrade libcurlUpgrade curl-minimal-debuginfoUpgrade curl-debugsourceUpgrade libcurl-debuginfoUpgrade curl-minimalUpgrade libcurl-minimalUpgrade libcurl-develUpgrade curl | Aug 9, 2023 | Mar 30, 2023 |
| Debian | — | Upgrade curl | Apr 24, 2023 | Mar 30, 2023 |
| Freebsd | — | Upgrade curl | Mar 23, 2023 | Mar 20, 2023 |
| Gentoo Linux | — | Upgrade net-misc/curl. | Oct 12, 2023 | Mar 30, 2023 |
| Huawei Euleros 2_0_sp10 | — | Upgrade curlUpgrade libcurl | May 9, 2023 | Mar 30, 2023 |
| Huawei Euleros 2_0_sp11 | — | Upgrade libcurlUpgrade curl | Jan 10, 2024 | Mar 30, 2023 |
| Huawei Euleros 2_0_sp8 | — | Upgrade libcurl-develUpgrade curlUpgrade libcurl | Jun 9, 2023 | Mar 30, 2023 |
| Huawei Euleros 2_0_sp9 | — | Upgrade curlUpgrade libcurl | Jul 10, 2023 | Mar 30, 2023 |
| Ibm Aix | — | Apply the fix or workaround for curl_advisory2 | Jul 27, 2023 | Mar 30, 2023 |
| Oracle_linux | — | Upgrade libcurl-minimalUpgrade curl-minimalUpgrade curlUpgrade libcurlUpgrade libcurl-devel | Aug 10, 2023 | Mar 20, 2023 |
| Redhat_linux | — | No solution existsUpgrade curl-debugsourceUpgrade libcurl-minimalUpgrade libcurl-minimal-debuginfoUpgrade curl-debuginfoUpgrade curl-minimal-debuginfoUpgrade libcurl-debuginfoUpgrade curl-minimalUpgrade libcurlUpgrade libcurl-develUpgrade curl | Aug 9, 2023 | Mar 30, 2023 |
| Rocky_linux | — | Upgrade curlUpgrade curl-debugsourceUpgrade libcurl-minimalUpgrade libcurl-minimal-debuginfoUpgrade libcurl-develUpgrade libcurl-debuginfoUpgrade libcurlUpgrade curl-debuginfo | Mar 5, 2024 | Mar 30, 2023 |
| Splunk | — | Upgrade Splunk Enterprise to version 8.1.14Upgrade Splunk Universal Forwarder to version 8.2.11Upgrade Splunk Enterprise to version 9.1.1Upgrade Splunk Universal Forwarder to version 8.1.14Upgrade Splunk Universal Forwarder to version 9.0.6Upgrade Splunk Universal Forwarder to version 9.1.1Upgrade Splunk Enterprise to version 8.2.11Upgrade Splunk Universal Forwarder to version 8.2.12Upgrade Splunk Universal Forwarder to version 9.0.5Upgrade Splunk Enterprise to version 8.2.12Upgrade Splunk Enterprise to version 9.0.6Upgrade Splunk Enterprise to version 9.0.5 | Sep 30, 2025 | Mar 30, 2023 |
| Suse | — | Upgrade libcurl4Upgrade libcurl4-32bitUpgrade libcurl-develUpgrade curlUpgrade libcurl-devel-32bit | Mar 22, 2023 | Mar 21, 2023 |
| Ubuntu | — | Upgrade libcurl3-gnutlsUpgrade libcurl4Upgrade libcurl3-gnutls (Ubuntu Pro)Upgrade curl (Ubuntu Pro)Upgrade libcurl3-nss (Ubuntu Pro)Upgrade libcurl3-nssUpgrade curlUpgrade libcurl3 (Ubuntu Pro) | Mar 22, 2023 | Mar 20, 2023 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Mar 30, 2023 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub