{"api_version":"1","generated_at":"2026-04-22T21:37:39+00:00","cve":"CVE-2021-22890","urls":{"html":"https://cve.report/CVE-2021-22890","api":"https://cve.report/api/cve/CVE-2021-22890.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-22890","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-22890"},"summary":{"title":"CVE-2021-22890","description":"curl 7.63.0 to and including 7.75.0 includes vulnerability that allows a malicious HTTPS proxy to MITM a connection due to bad handling of TLS 1.3 session tickets. When using a HTTPS proxy and TLS 1.3, libcurl can confuse session tickets arriving from the HTTPS proxy but work as if they arrived from the remote server and then wrongly \"short-cut\" the host handshake. When confusing the tickets, a HTTPS proxy can trick libcurl to use the wrong session ticket resume for the host and thereby circumvent the server TLS certificate check and make a MITM attack to be possible to perform unnoticed. Note that such a malicious HTTPS proxy needs to provide a certificate that curl will accept for the MITMed server for an attack to work - unless curl has been told to ignore the server certificate check.","state":"PUBLIC","assigner":"support@hackerone.com","published_at":"2021-04-01 18:15:00","updated_at":"2024-03-27 15:47:00"},"problem_types":["CWE-290"],"metrics":[],"references":[{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2ZC5BMIOKLBQJSFCHEDN2G2C2SH274BP/","name":"FEDORA-2021-26a293c72b","refsource":"","tags":[],"title":"[SECURITY] Fedora 32 Update: curl-7.69.1-8.fc32 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://curl.se/docs/CVE-2021-22890.html","name":"https://curl.se/docs/CVE-2021-22890.html","refsource":"MISC","tags":[],"title":"curl - TLS 1.3 session ticket proxy host mixup - CVE-2021-22890","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ITVWPVGLFISU5BJC2BXBRYSDXTXE2YGC/","name":"FEDORA-2021-cab5c9befb","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 33 Update: curl-7.71.1-9.fc33 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://hackerone.com/reports/1129529","name":"https://hackerone.com/reports/1129529","refsource":"MISC","tags":[],"title":"HackerOne","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KQUIOYX2KUU6FIUZVB5WWZ6JHSSYSQWJ/","name":"FEDORA-2021-065371f385","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 34 Update: curl-7.76.0-1.fc34 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://security.gentoo.org/glsa/202105-36","name":"GLSA-202105-36","refsource":"GENTOO","tags":[],"title":"cURL: Multiple vulnerabilities (GLSA 202105-36) — Gentoo security","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.oracle.com//security-alerts/cpujul2021.html","name":"N/A","refsource":"N/A","tags":[],"title":"Oracle Critical Patch Update Advisory - July 2021","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2ZC5BMIOKLBQJSFCHEDN2G2C2SH274BP/","name":"FEDORA-2021-26a293c72b","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 32 Update: curl-7.69.1-8.fc32 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf","name":"https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf","refsource":"CONFIRM","tags":[],"title":"","mime":"application/pdf","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KQUIOYX2KUU6FIUZVB5WWZ6JHSSYSQWJ/","name":"FEDORA-2021-065371f385","refsource":"","tags":[],"title":"[SECURITY] Fedora 34 Update: curl-7.76.0-1.fc34 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ITVWPVGLFISU5BJC2BXBRYSDXTXE2YGC/","name":"FEDORA-2021-cab5c9befb","refsource":"","tags":[],"title":"[SECURITY] Fedora 33 Update: curl-7.71.1-9.fc33 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://security.netapp.com/advisory/ntap-20210521-0007/","name":"https://security.netapp.com/advisory/ntap-20210521-0007/","refsource":"CONFIRM","tags":[],"title":"April 2021 cURL/libcURL Vulnerabilities in NetApp Products | NetApp Product Security","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-22890","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-22890","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"22890","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"broadcom","cpe5":"fabric_operating_system","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"22890","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"9.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"22890","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"32","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"22890","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"33","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"22890","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"34","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"22890","vulnerable":"1","versionEndIncluding":"7.75.0","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"haxx","cpe5":"libcurl","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"22890","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"netapp","cpe5":"hci_management_node","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"22890","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"netapp","cpe5":"hci_storage_node","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"22890","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"netapp","cpe5":"solidfire","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"22890","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"oracle","cpe5":"communications_billing_and_revenue_management","cpe6":"12.0.0.3.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"22890","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"oracle","cpe5":"essbase","cpe6":"21.2","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"22890","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"siemens","cpe5":"sinec_infrastructure_network_services","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"22890","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":"2021","cve_id":"22890","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-2021-22890","qid":"174942","title":"SUSE Enterprise Linux Security Update for curl (SUSE-SU-2021:1006-1)"},{"cve":"CVE-2021-22890","qid":"178522","title":"Debian Security Update for curl (DSA 4881-1)"},{"cve":"CVE-2021-22890","qid":"179967","title":"Debian Security Update for curl (CVE-2021-22890)"},{"cve":"CVE-2021-22890","qid":"198316","title":"Ubuntu Security Notification for Curl Vulnerabilities (USN-4898-1)"},{"cve":"CVE-2021-22890","qid":"239451","title":"Red Hat Update for Red Hat JBoss Core Services Apache HTTP Server 2.4.37 SP8 (RHSA-2021:2472)"},{"cve":"CVE-2021-22890","qid":"281384","title":"Fedora Security Update for curl (FEDORA-2021-cab5c9befb)"},{"cve":"CVE-2021-22890","qid":"281385","title":"Fedora Security Update for curl (FEDORA-2021-065371f385)"},{"cve":"CVE-2021-22890","qid":"281386","title":"Fedora Security Update for curl (FEDORA-2021-26a293c72b)"},{"cve":"CVE-2021-22890","qid":"296059","title":"Oracle Solaris 11.4 Support Repository Update (SRU) 36.0.1.101.2 Missing (CPUJUL2021)"},{"cve":"CVE-2021-22890","qid":"378599","title":"Splunk Enterprise Third Party Package Updates for June (SVD-2023-0613)"},{"cve":"CVE-2021-22890","qid":"378883","title":"Splunk Enterprise August Third Party Package Updates (SVD-2023-0808)"},{"cve":"CVE-2021-22890","qid":"500134","title":"Alpine Linux Security Update for curl"},{"cve":"CVE-2021-22890","qid":"503785","title":"Alpine Linux Security Update for curl"},{"cve":"CVE-2021-22890","qid":"591406","title":"Siemens SIMATIC S7-1500 CPU GNU/Linux subsystem Multiple Vulnerabilities (SSB-439005, ICSA-22-104-13)"},{"cve":"CVE-2021-22890","qid":"670440","title":"EulerOS Security Update for curl (EulerOS-SA-2021-2060)"},{"cve":"CVE-2021-22890","qid":"670451","title":"EulerOS Security Update for curl (EulerOS-SA-2021-2049)"},{"cve":"CVE-2021-22890","qid":"670903","title":"EulerOS Security Update for curl (EulerOS-SA-2021-2060)"},{"cve":"CVE-2021-22890","qid":"690177","title":"Free Berkeley Software Distribution (FreeBSD) Security Update for curl (d10fc771-958f-11eb-9c34-080027f515ea)"},{"cve":"CVE-2021-22890","qid":"710078","title":"Gentoo Linux cURL Multiple vulnerabilities (GLSA 202105-36)"},{"cve":"CVE-2021-22890","qid":"730155","title":"McAfee Web Gateway Multiple Vulnerabilities(WP-3580, WP-3656, WP-3815, WP-3878, WP-3882, WP-3934,WP-3935, WP-3936, WP-3999)"},{"cve":"CVE-2021-22890","qid":"750283","title":"OpenSUSE Security Update for curl (openSUSE-SU-2021:0510-1)"},{"cve":"CVE-2021-22890","qid":"900279","title":"CBL-Mariner Linux Security Update for curl 7.74.0"},{"cve":"CVE-2021-22890","qid":"903340","title":"Common Base Linux Mariner (CBL-Mariner) Security Update for curl (4048)"}]},"source_records":{"cve_program":{"data_type":"CVE","data_format":"MITRE","data_version":"4.0","CVE_data_meta":{"ID":"CVE-2021-22890","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":"7.63.0 to and including 7.75.0"}]}}]}}]}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Man-in-the-Middle (CWE-300)"}]}]},"references":{"reference_data":[{"refsource":"MISC","name":"https://hackerone.com/reports/1129529","url":"https://hackerone.com/reports/1129529"},{"refsource":"MISC","name":"https://curl.se/docs/CVE-2021-22890.html","url":"https://curl.se/docs/CVE-2021-22890.html"},{"refsource":"FEDORA","name":"FEDORA-2021-cab5c9befb","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ITVWPVGLFISU5BJC2BXBRYSDXTXE2YGC/"},{"refsource":"FEDORA","name":"FEDORA-2021-065371f385","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KQUIOYX2KUU6FIUZVB5WWZ6JHSSYSQWJ/"},{"refsource":"FEDORA","name":"FEDORA-2021-26a293c72b","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2ZC5BMIOKLBQJSFCHEDN2G2C2SH274BP/"},{"refsource":"GENTOO","name":"GLSA-202105-36","url":"https://security.gentoo.org/glsa/202105-36"},{"url":"https://www.oracle.com//security-alerts/cpujul2021.html","refsource":"MISC","name":"https://www.oracle.com//security-alerts/cpujul2021.html"},{"refsource":"CONFIRM","name":"https://security.netapp.com/advisory/ntap-20210521-0007/","url":"https://security.netapp.com/advisory/ntap-20210521-0007/"},{"refsource":"CONFIRM","name":"https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf","url":"https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf"}]},"description":{"description_data":[{"lang":"eng","value":"curl 7.63.0 to and including 7.75.0 includes vulnerability that allows a malicious HTTPS proxy to MITM a connection due to bad handling of TLS 1.3 session tickets. When using a HTTPS proxy and TLS 1.3, libcurl can confuse session tickets arriving from the HTTPS proxy but work as if they arrived from the remote server and then wrongly \"short-cut\" the host handshake. When confusing the tickets, a HTTPS proxy can trick libcurl to use the wrong session ticket resume for the host and thereby circumvent the server TLS certificate check and make a MITM attack to be possible to perform unnoticed. Note that such a malicious HTTPS proxy needs to provide a certificate that curl will accept for the MITMed server for an attack to work - unless curl has been told to ignore the server certificate check."}]}},"nvd":{"publishedDate":"2021-04-01 18:15:00","lastModifiedDate":"2024-03-27 15:47:00","problem_types":["CWE-290"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE","baseScore":3.7,"baseSeverity":"LOW"},"exploitabilityScore":2.2,"impactScore":1.4},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:N/I:P/A:N","accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE","baseScore":4.3},"severity":"MEDIUM","exploitabilityScore":8.6,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:*","versionStartIncluding":"7.63.0","versionEndIncluding":"7.75.0","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:h:netapp:hci_storage_node:-:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:broadcom:fabric_operating_system:-:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:siemens:sinec_infrastructure_network_services:*:*:*:*:*:*:*:*","versionEndExcluding":"1.0.1.1","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:oracle:communications_billing_and_revenue_management:12.0.0.3.0:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:oracle:essbase:21.2:*:*:*:*:*:*:*","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":{"CveYear":"2021","CveId":"22890","Ordinal":"197623","Title":"CVE-2021-22890","CVE":"CVE-2021-22890","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"22890","Ordinal":"1","NoteData":"curl 7.63.0 to and including 7.75.0 includes vulnerability that allows a malicious HTTPS proxy to MITM a connection due to bad handling of TLS 1.3 session tickets. When using a HTTPS proxy and TLS 1.3, libcurl can confuse session tickets arriving from the HTTPS proxy but work as if they arrived from the remote server and then wrongly \"short-cut\" the host handshake. When confusing the tickets, a HTTPS proxy can trick libcurl to use the wrong session ticket resume for the host and thereby circumvent the server TLS certificate check and make a MITM attack to be possible to perform unnoticed. Note that such a malicious HTTPS proxy needs to provide a certificate that curl will accept for the MITMed server for an attack to work - unless curl has been told to ignore the server certificate check.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"22890","Ordinal":"2","NoteData":"2021-04-01","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"22890","Ordinal":"3","NoteData":"2021-07-20","Type":"Other","Title":"Modified"}]}}}