{"api_version":"1","generated_at":"2026-04-22T19:18:39+00:00","cve":"CVE-2023-27536","urls":{"html":"https://cve.report/CVE-2023-27536","api":"https://cve.report/api/cve/CVE-2023-27536.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-27536","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-27536"},"summary":{"title":"CVE-2023-27536","description":"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.","state":"PUBLIC","assigner":"support@hackerone.com","published_at":"2023-03-30 20:15:00","updated_at":"2024-03-27 14:46:00"},"problem_types":["CWE-287"],"metrics":[],"references":[{"url":"https://security.gentoo.org/glsa/202310-12","name":"GLSA-202310-12","refsource":"GENTOO","tags":[],"title":"curl: Multiple Vulnerabilities (GLSA 202310-12) — Gentoo security","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://hackerone.com/reports/1895135","name":"https://hackerone.com/reports/1895135","refsource":"MISC","tags":[],"title":"HackerOne","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.debian.org/debian-lts-announce/2023/04/msg00025.html","name":"[debian-lts-announce] 20230421 [SECURITY] [DLA 3398-1] curl security update","refsource":"MLIST","tags":[],"title":"[SECURITY] [DLA 3398-1] curl security update","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://security.netapp.com/advisory/ntap-20230420-0010/","name":"https://security.netapp.com/advisory/ntap-20230420-0010/","refsource":"CONFIRM","tags":[],"title":"March 2023 cURL/libcURL Vulnerabilities in NetApp Products | NetApp Product Security","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36NBD5YLJXXEDZLDGNFCERWRYJQ6LAQW/","name":"FEDORA-2023-7e7414e64d","refsource":"","tags":[],"title":"[SECURITY] Fedora 36 Update: curl-7.82.0-14.fc36 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/36NBD5YLJXXEDZLDGNFCERWRYJQ6LAQW/","name":"FEDORA-2023-7e7414e64d","refsource":"FEDORA","tags":["Mailing List","Third Party Advisory"],"title":"[SECURITY] Fedora 36 Update: curl-7.82.0-14.fc36 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-27536","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-27536","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2023","cve_id":"27536","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"10.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"27536","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"36","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"27536","vulnerable":"1","versionEndIncluding":"7.88.1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"haxx","cpe5":"libcurl","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"27536","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"netapp","cpe5":"active_iq_unified_manager","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"vmware_vsphere","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"27536","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"netapp","cpe5":"h300s","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"27536","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"netapp","cpe5":"h300s_firmware","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"27536","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"netapp","cpe5":"h410s","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"27536","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"netapp","cpe5":"h410s_firmware","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"27536","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"netapp","cpe5":"h500s","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"27536","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"netapp","cpe5":"h500s_firmware","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"27536","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"netapp","cpe5":"h700s","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"27536","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"netapp","cpe5":"h700s_firmware","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"27536","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"netapp","cpe5":"ontap","cpe6":"9","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"27536","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"splunk","cpe5":"universal_forwarder","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"27536","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"splunk","cpe5":"universal_forwarder","cpe6":"9.1.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2023-27536","qid":"160858","title":"Oracle Enterprise Linux Security Update for curl (ELSA-2023-4523)"},{"cve":"CVE-2023-27536","qid":"161067","title":"Oracle Enterprise Linux Security Update for curl (ELSA-2023-6679)"},{"cve":"CVE-2023-27536","qid":"181748","title":"Debian Security Update for curl (DLA 3398-1)"},{"cve":"CVE-2023-27536","qid":"182871","title":"Debian Security Update for curl (CVE-2023-27536)"},{"cve":"CVE-2023-27536","qid":"199246","title":"Ubuntu Security Notification for curl Vulnerabilities (USN-5964-1)"},{"cve":"CVE-2023-27536","qid":"241941","title":"Red Hat Update for curl (RHSA-2023:4523)"},{"cve":"CVE-2023-27536","qid":"242295","title":"Red Hat Update for curl (RHSA-2023:6679)"},{"cve":"CVE-2023-27536","qid":"242849","title":"Red Hat Update for curl (RHSA-2024:0428)"},{"cve":"CVE-2023-27536","qid":"283820","title":"Fedora Security Update for curl (FEDORA-2023-2884ba1528)"},{"cve":"CVE-2023-27536","qid":"283865","title":"Fedora Security Update for curl (FEDORA-2023-7e7414e64d)"},{"cve":"CVE-2023-27536","qid":"284222","title":"Fedora Security Update for curl (FEDORA-2023-0de03a9232)"},{"cve":"CVE-2023-27536","qid":"330140","title":"IBM AIX Multiple Vulnerabilities due to curl (curl_advisory2)"},{"cve":"CVE-2023-27536","qid":"354900","title":"Amazon Linux Security Advisory for curl : ALAS-2023-1727"},{"cve":"CVE-2023-27536","qid":"355390","title":"Amazon Linux Security Advisory for curl : ALAS2-2023-2070"},{"cve":"CVE-2023-27536","qid":"355415","title":"Amazon Linux Security Advisory for curl : ALAS2023-2023-193"},{"cve":"CVE-2023-27536","qid":"378599","title":"Splunk Enterprise Third Party Package Updates for June (SVD-2023-0613)"},{"cve":"CVE-2023-27536","qid":"378883","title":"Splunk Enterprise August Third Party Package Updates (SVD-2023-0808)"},{"cve":"CVE-2023-27536","qid":"378896","title":"Alibaba Cloud Linux Security Update for curl (ALINUX3-SA-2023:0112)"},{"cve":"CVE-2023-27536","qid":"502707","title":"Alpine Linux Security Update for curl"},{"cve":"CVE-2023-27536","qid":"502720","title":"Alpine Linux Security Update for curl"},{"cve":"CVE-2023-27536","qid":"503104","title":"Alpine Linux Security Update for curl"},{"cve":"CVE-2023-27536","qid":"505862","title":"Alpine Linux Security Update for curl"},{"cve":"CVE-2023-27536","qid":"672889","title":"EulerOS Security Update for curl (EulerOS-SA-2023-1816)"},{"cve":"CVE-2023-27536","qid":"672907","title":"EulerOS Security Update for curl (EulerOS-SA-2023-1798)"},{"cve":"CVE-2023-27536","qid":"673091","title":"EulerOS Security Update for curl (EulerOS-SA-2023-2188)"},{"cve":"CVE-2023-27536","qid":"673174","title":"EulerOS Security Update for curl (EulerOS-SA-2023-2308)"},{"cve":"CVE-2023-27536","qid":"673187","title":"EulerOS Security Update for curl (EulerOS-SA-2023-2328)"},{"cve":"CVE-2023-27536","qid":"673616","title":"EulerOS Security Update for curl (EulerOS-SA-2023-2635)"},{"cve":"CVE-2023-27536","qid":"673678","title":"EulerOS Security Update for curl (EulerOS-SA-2023-2677)"},{"cve":"CVE-2023-27536","qid":"691088","title":"Free Berkeley Software Distribution (FreeBSD) Security Update for curl (0d7d104c-c6fb-11ed-8a4b-080027f5fec9)"},{"cve":"CVE-2023-27536","qid":"710772","title":"Gentoo Linux curl Multiple Vulnerabilities (GLSA 202310-12)"},{"cve":"CVE-2023-27536","qid":"753819","title":"SUSE Enterprise Linux Security Update for curl (SUSE-SU-2023:0865-1)"},{"cve":"CVE-2023-27536","qid":"753857","title":"SUSE Enterprise Linux Security Update for curl (SUSE-SU-2023:1711-1)"},{"cve":"CVE-2023-27536","qid":"754020","title":"SUSE Enterprise Linux Security Update for curl (SUSE-SU-2023:2226-1)"},{"cve":"CVE-2023-27536","qid":"754021","title":"SUSE Enterprise Linux Security Update for curl (SUSE-SU-2023:2228-1)"},{"cve":"CVE-2023-27536","qid":"906756","title":"Common Base Linux Mariner (CBL-Mariner) Security Update for curl (25845-1)"},{"cve":"CVE-2023-27536","qid":"907400","title":"Common Base Linux Mariner (CBL-Mariner) Security Update for rust (25809-1)"},{"cve":"CVE-2023-27536","qid":"907609","title":"Common Base Linux Mariner (CBL-Mariner) Security Update for mysql (25802-1)"},{"cve":"CVE-2023-27536","qid":"941218","title":"AlmaLinux Security Update for curl (ALSA-2023:4523)"},{"cve":"CVE-2023-27536","qid":"941357","title":"AlmaLinux Security Update for curl (ALSA-2023:6679)"},{"cve":"CVE-2023-27536","qid":"961033","title":"Rocky Linux Security Update for curl (RLSA-2023:4523)"}]},"source_records":{"cve_program":{"data_type":"CVE","data_format":"MITRE","data_version":"4.0","CVE_data_meta":{"ID":"CVE-2023-27536","ASSIGNER":"support@hackerone.com","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"vendor_name":"n/a","product":{"product_data":[{"product_name":"https://github.com/curl/curl","version":{"version_data":[{"version_value":"Fixed in 8.0.0"}]}}]}}]}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Authentication Bypass by Primary Weakness (CWE-305)"}]}]},"references":{"reference_data":[{"refsource":"MISC","name":"https://hackerone.com/reports/1895135","url":"https://hackerone.com/reports/1895135"},{"refsource":"FEDORA","name":"FEDORA-2023-7e7414e64d","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/36NBD5YLJXXEDZLDGNFCERWRYJQ6LAQW/"},{"refsource":"CONFIRM","name":"https://security.netapp.com/advisory/ntap-20230420-0010/","url":"https://security.netapp.com/advisory/ntap-20230420-0010/"},{"refsource":"MLIST","name":"[debian-lts-announce] 20230421 [SECURITY] [DLA 3398-1] curl security update","url":"https://lists.debian.org/debian-lts-announce/2023/04/msg00025.html"},{"refsource":"GENTOO","name":"GLSA-202310-12","url":"https://security.gentoo.org/glsa/202310-12"}]},"description":{"description_data":[{"lang":"eng","value":"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."}]}},"nvd":{"publishedDate":"2023-03-30 20:15:00","lastModifiedDate":"2024-03-27 14:46:00","problem_types":["CWE-287"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":5.9,"baseSeverity":"MEDIUM"},"exploitabilityScore":2.2,"impactScore":3.6}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:*","versionStartIncluding":"7.22.0","versionEndIncluding":"7.88.1","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*","cpe_name":[]}]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:netapp:ontap:9:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:splunk:universal_forwarder:9.1.0:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:*","versionStartIncluding":"9.0.0","versionEndExcluding":"9.0.6","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:*","versionStartIncluding":"8.2.0","versionEndExcluding":"8.2.12","cpe_name":[]}]}]}},"legacy_mitre":{"record":null,"notes":[]}}}