{"cve":{"cve_id":"CVE-2021-22922","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.04332,"epss_percentile":0.91052,"epss_as_of":"2026-10-15","description":"When curl is instructed to download content using the metalink feature, thecontents is verified against a hash provided in the metalink XML file.The metalink XML file points out to the client how to get the same contentfrom a set of different URLs, potentially hosted by different servers and theclient can then download the file from one or several of them. In a serial orparallel manner.If one of the servers hosting the contents has been breached and the contentsof the specific file on that server is replaced with a modified payload, curlshould detect this when the hash of the file mismatches after a completeddownload. It should remove the contents and instead try getting the contentsfrom another URL. This is not done, and instead such a hash mismatch is onlymentioned in text and the potentially malicious content is kept in the file ondisk.","published_at":"2021-08-05T00:00:00Z","last_modified_at":"2026-10-14T11:16:53.360000Z","cvss_v3_score":6.5,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","cvss_v3_severity":"MEDIUM","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":"poc","ssvc_automatable":false,"ssvc_technical_impact":"partial","cwes":["CWE-840"],"nvd_references":["https://hackerone.com/reports/1213175","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/","https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cdev.kafka.apache.org%3E","https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cusers.kafka.apache.org%3E","https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cusers.kafka.apache.org%3E","https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cdev.kafka.apache.org%3E","https://www.oracle.com/security-alerts/cpuoct2021.html","https://security.netapp.com/advisory/ntap-20210902-0003/","https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf","https://security.gentoo.org/glsa/202212-01"],"vuln_status":"Modified","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-10-14T23:59:09.254433Z"},"effective_severity":"MEDIUM","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"R","value_label":"Required"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"N","value_label":"None"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"N","value_label":"None"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"fedoraproject","vendor_name":"fedoraproject","product_slug":"fedora","product_name":"fedora","version_start":"33","version_start_inclusive":true,"version_end":"33","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*"},{"vendor_slug":"haxx","vendor_name":"haxx","product_slug":"curl","product_name":"curl","version_start":"7.27.0","version_start_inclusive":true,"version_end":"7.78.0","version_end_inclusive":false,"cpe23_uri":"cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*"},{"vendor_slug":"netapp","vendor_name":"NetApp","product_slug":"cloud-backup","product_name":"cloud_backup","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*"},{"vendor_slug":"netapp","vendor_name":"NetApp","product_slug":"clustered-data-ontap","product_name":"Clustered Data ONTAP","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*"},{"vendor_slug":"netapp","vendor_name":"NetApp","product_slug":"h300e-firmware","product_name":"h300e_firmware","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*"},{"vendor_slug":"netapp","vendor_name":"NetApp","product_slug":"h300s-firmware","product_name":"h300s_firmware","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*"},{"vendor_slug":"netapp","vendor_name":"NetApp","product_slug":"h410s-firmware","product_name":"h410s_firmware","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*"},{"vendor_slug":"netapp","vendor_name":"NetApp","product_slug":"h500e-firmware","product_name":"h500e_firmware","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*"},{"vendor_slug":"netapp","vendor_name":"NetApp","product_slug":"h500s-firmware","product_name":"h500s_firmware","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*"},{"vendor_slug":"netapp","vendor_name":"NetApp","product_slug":"h700e-firmware","product_name":"h700e_firmware","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*"},{"vendor_slug":"netapp","vendor_name":"NetApp","product_slug":"h700s-firmware","product_name":"h700s_firmware","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*"},{"vendor_slug":"netapp","vendor_name":"NetApp","product_slug":"hci-management-node","product_name":"hci_management_node","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*"},{"vendor_slug":"netapp","vendor_name":"NetApp","product_slug":"solidfire","product_name":"solidfire","version_start":null,"version_start_inclusive":null,"version_end":null,"version_end_inclusive":null,"cpe23_uri":"cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*"},{"vendor_slug":"oracle","vendor_name":"oracle","product_slug":"mysql-server","product_name":"mysql_server","version_start":"5.7.0","version_start_inclusive":true,"version_end":"5.7.35","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"sinec-infrastructure-network-services","product_name":"sinec_infrastructure_network_services","version_start":null,"version_start_inclusive":null,"version_end":"1.0.1.1","version_end_inclusive":false,"cpe23_uri":"cpe:2.3:a:siemens:sinec_infrastructure_network_services:*:*:*:*:*:*:*:*"},{"vendor_slug":"splunk","vendor_name":"Splunk","product_slug":"universal-forwarder","product_name":"Universal Forwarder","version_start":"8.2.0","version_start_inclusive":true,"version_end":"8.2.12","version_end_inclusive":false,"cpe23_uri":"cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:*"},{"vendor_slug":"splunk","vendor_name":"Splunk","product_slug":"universal-forwarder","product_name":"Universal Forwarder","version_start":"9.1.0","version_start_inclusive":true,"version_end":"9.1.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:splunk:universal_forwarder:9.1.0:*:*:*:*:*:*:*"}],"exploit_refs":[],"news":[],"references":[{"url":"https://hackerone.com/reports/1213175","source_type":"MISC","tags":[]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cdev.kafka.apache.org%3E","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cusers.kafka.apache.org%3E","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cusers.kafka.apache.org%3E","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cdev.kafka.apache.org%3E","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://www.oracle.com/security-alerts/cpuoct2021.html","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20210902-0003/","source_type":"MISC","tags":[]},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf","source_type":"MISC","tags":[]},{"url":"https://security.gentoo.org/glsa/202212-01","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2021-08-05T00:00:00Z","label":"CVE published","source":null},{"type":"ssvc_changed","at":"2026-06-24T00:31:38.771468Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-24T00:31:38.771468Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-24T00:31:38.771468Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:38.771468Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:38.771468Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:38.771468Z","label":"CVSS score revised","source":"vulnrichment"}]}