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 curl-minimalUpgrade libcurl-minimalUpgrade libcurl-develUpgrade libcurlUpgrade curl | Aug 10, 2023 | Mar 30, 2023 |
| Alpine Linux | — | Upgrade curl | Mar 26, 2024 | Mar 30, 2023 |
| Amazon Linux Ami 2 | — | Upgrade libcurlUpgrade libcurl-develUpgrade curl-debuginfoUpgrade curl | Jun 8, 2023 | Mar 30, 2023 |
| Amazon_linux | — | Upgrade curl | Apr 21, 2023 | Mar 21, 2023 |
| Amazon_linux_2023 | — | Upgrade libcurl-minimal-debuginfoUpgrade curl-minimalUpgrade libcurl-minimalUpgrade libcurl-develUpgrade curl-minimal-debuginfoUpgrade curl-debuginfoUpgrade curl-debugsourceUpgrade libcurl-debuginfoUpgrade libcurlUpgrade curl | Feb 17, 2025 | Mar 20, 2023 |
| Centos_linux | — | Upgrade curlUpgrade libcurl-develUpgrade libcurl-debuginfoUpgrade libcurl-minimalUpgrade curl-minimalUpgrade curl-debugsourceUpgrade libcurl-minimal-debuginfoUpgrade curl-debuginfoUpgrade curl-minimal-debuginfoUpgrade libcurl | 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 libcurlUpgrade curlUpgrade libcurl-devel | 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-develUpgrade curlUpgrade libcurlUpgrade libcurl-minimalUpgrade curl-minimal | Aug 10, 2023 | Mar 20, 2023 |
| Redhat_linux | — | Upgrade libcurl-minimalUpgrade curl-debugsourceNo solution existsUpgrade curl-minimal-debuginfoUpgrade curl-debuginfoUpgrade libcurl-minimal-debuginfoUpgrade libcurl-develUpgrade libcurl-debuginfoUpgrade libcurlUpgrade curl-minimalUpgrade curl | Aug 9, 2023 | Mar 30, 2023 |
| Rocky_linux | — | Upgrade curlUpgrade libcurl-minimal-debuginfoUpgrade libcurl-minimalUpgrade curl-debugsourceUpgrade libcurlUpgrade curl-debuginfoUpgrade libcurl-develUpgrade libcurl-debuginfo | Mar 5, 2024 | Mar 30, 2023 |
| Splunk | — | Upgrade Splunk Enterprise to version 8.2.11Upgrade Splunk Universal Forwarder to version 9.1.1Upgrade Splunk Universal Forwarder to version 8.1.14Upgrade Splunk Enterprise to version 8.1.14Upgrade Splunk Universal Forwarder to version 9.0.6Upgrade Splunk Enterprise to version 9.1.1Upgrade Splunk Universal Forwarder to version 8.2.11Upgrade Splunk Universal Forwarder to version 8.2.12Upgrade Splunk Enterprise to version 9.0.6Upgrade Splunk Universal Forwarder to version 9.0.5Upgrade Splunk Enterprise to version 9.0.5Upgrade Splunk Enterprise to version 8.2.12 | Sep 30, 2025 | Mar 30, 2023 |
| Suse | — | Upgrade libcurl4-32bitUpgrade curlUpgrade libcurl-develUpgrade libcurl-devel-32bitUpgrade libcurl4 | Mar 22, 2023 | Mar 21, 2023 |
| Ubuntu | — | Upgrade libcurl3-nssUpgrade libcurl3 (Ubuntu Pro)Upgrade curlUpgrade libcurl3-nss (Ubuntu Pro)Upgrade libcurl4Upgrade libcurl3-gnutls (Ubuntu Pro)Upgrade curl (Ubuntu Pro)Upgrade libcurl3-gnutls | 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