{"schemaVersion":3,"id":"CVE-2022-42916","aliases":["ALPINE-CVE-2022-42916","UBUNTU-CVE-2022-42916","DEBIAN-CVE-2022-42916","CGA-c862-rxfc-rq87","CGA-pg2x-43f9-9cfw"],"status":"published","duplicateOf":null,"title":null,"description":"In curl before 7.86.0, the HSTS check could be bypassed to trick it into staying with HTTP. Using its HSTS support, curl can be instructed to use HTTPS directly (instead of using an insecure cleartext HTTP step) even when HTTP is provided in the URL. This mechanism could be bypassed if the host name in the given URL uses IDN characters that get replaced with ASCII counterparts as part of the IDN conversion, e.g., using the character UTF-8 U+3002 (IDEOGRAPHIC FULL STOP) instead of the common ASCII full stop of U+002E (.). The earliest affected version is 7.77.0 2021-05-26.","dates":{"published":"2022-10-29T00:00:00.000Z","modified":"2026-10-14T18:26:44.484Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.5,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Alpine","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","exploitability":10,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","exploitability":10,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","exploitability":10,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Wolfi","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","exploitability":10,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Chainguard","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","exploitability":10,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.02012,"percentile":0.80551,"severity":"low","asOf":"2026-10-18T00:00:00.000Z","change":{"pp":0.20300000000000007,"baselineDate":"2026-09-18T00:00:00.000Z","baselineScore":0.01809},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01846,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01846,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01846,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01846,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01846,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01846,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01846,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01846,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01846,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01846,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01846,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.02012,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.02012,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.02012,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.02012,"percentile":0.80551}],"last30":[{"date":"2026-09-18T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01809,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01846,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01846,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01846,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01846,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01846,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01846,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01846,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01846,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01846,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01846,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01846,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.02012,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.02012,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.02012,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.02012,"percentile":0.80551}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-319","name":"Cleartext Transmission of Sensitive Information","description":"The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/319.html"}],"affected":[{"vendor":"alpine","product":"curl","name":"curl","label":"curl","ecosystem":"Alpine Linux","cpePart":null,"purl":"pkg:apk/alpine/curl","purlType":"apk","versions":[{"text":"≥ 7.77.0, < 7.80.0-r4","noFixRecorded":false,"fixedIn":null},{"text":"≥ 7.77.0, < 7.83.1-r4","noFixRecorded":false,"fixedIn":null},{"text":"≥ 7.77.0, < 7.86.0-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 7.77.0, < 7.80.0-r4 | ≥ 7.77.0, < 7.83.1-r4 | ≥ 7.77.0, < 7.86.0-r0","eol":null,"hubHref":null},{"vendor":"chainguard","product":"curl","name":"curl","label":"curl","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/curl","purlType":"apk","versions":[{"text":"< 7.86.0-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 7.86.0-r0","eol":null,"hubHref":null},{"vendor":"wolfi","product":"curl","name":"curl","label":"curl","ecosystem":"Wolfi","cpePart":null,"purl":"pkg:apk/wolfi/curl","purlType":"apk","versions":[{"text":"< 7.86.0-r0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 7.86.0-r0","eol":null,"hubHref":null},{"vendor":"apple","product":"macos","name":"macos","label":"macos","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 12.6.3","noFixRecorded":false,"fixedIn":null},{"text":"≥ 13.0, < 13.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 12.6.3 | ≥ 13.0, < 13.2","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"macos","label":"Apple macOS","category":"os"}},"hubHref":"/vendor/apple/macos"},{"vendor":"debian","product":"curl","name":"curl","label":"curl","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/curl","purlType":"deb","versions":[{"text":"< 7.86.0-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 7.86.0-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"curl","name":"curl","label":"curl","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/curl","purlType":"deb","versions":[{"text":"< 7.81.0-1ubuntu1.6","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 7.81.0-1ubuntu1.6","eol":null,"hubHref":null},{"vendor":"fedoraproject","product":"fedora","name":"fedora","label":"fedora","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"35","noFixRecorded":false,"fixedIn":null},{"text":"36","noFixRecorded":false,"fixedIn":null},{"text":"37","noFixRecorded":false,"fixedIn":null}],"versionsText":"35 | 36 | 37","eol":{"isEol":true,"eolDate":"2022-12-13T00:00:00.000Z","matchMethod":"cpe","cycle":{"name":"35","label":"35","eolFrom":"2022-12-13T00:00:00.000Z","isLts":false,"isMaintained":false,"latestVersion":null},"product":{"name":"fedora","label":"Fedora Linux","category":"os"}},"hubHref":"/vendor/fedoraproject/fedora"},{"vendor":"haxx","product":"curl","name":"curl","label":"curl","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 7.77.0, < 7.86.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 7.77.0, < 7.86.0","eol":null,"hubHref":"/vendor/haxx/curl"},{"vendor":"splunk","product":"universal_forwarder","name":"universal forwarder","label":"universal_forwarder","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 8.2.0, < 8.2.12","noFixRecorded":false,"fixedIn":null},{"text":"≥ 9.0.0, < 9.0.6","noFixRecorded":false,"fixedIn":null},{"text":"9.1.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 8.2.0, < 8.2.12 | ≥ 9.0.0, < 9.0.6 | 9.1.0","eol":null,"hubHref":"/vendor/splunk/universal_forwarder"}],"affectedCount":9,"eol":{"hasEol":true,"count":1},"references":[{"url":"https://curl.se/docs/CVE-2022-42916.html","label":"curl.se/docs/CVE-2022-42916.html","hostname":"curl.se","tags":["REPORT","WEB","Vendor Advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVU3IMZCKR4VE6KJ4GCWRL2ILLC6OV76/","label":"lists.fedoraproject.org/archives/…","hostname":"lists.fedoraproject.org","tags":["Vendor Advisory","Advisory","Mailing List","Third Party Advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Q27V5YYMXUVI6PRZQVECON32XPVWTKDK/","label":"lists.fedoraproject.org/archives/…","hostname":"lists.fedoraproject.org","tags":["Vendor Advisory","Advisory","Mailing List","Third Party Advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/37YEVVC6NAF6H7UHH6YAUY5QEVY6LIH2/","label":"lists.fedoraproject.org/archives/…","hostname":"lists.fedoraproject.org","tags":["Vendor Advisory","Advisory","Mailing List","Third Party Advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20221209-0010/","label":"security.netapp.com/advisory/ntap-20221209-0010/","hostname":"security.netapp.com","tags":["Advisory","Broken Link"]},{"url":"https://security.gentoo.org/glsa/202212-01","label":"security.gentoo.org/glsa/202212-01","hostname":"security.gentoo.org","tags":["Vendor Advisory","Advisory","Third Party Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2022/12/21/1","label":"www.openwall.com/lists/oss-security/2022/12/21/1","hostname":"www.openwall.com","tags":["Mailing List","ARTICLE","Third Party Advisory"]},{"url":"https://support.apple.com/kb/HT213604","label":"support.apple.com/kb/HT213604","hostname":"support.apple.com","tags":["WEB","Third Party Advisory"]},{"url":"https://support.apple.com/kb/HT213605","label":"support.apple.com/kb/HT213605","hostname":"support.apple.com","tags":["WEB","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2023/Jan/20","label":"seclists.org/fulldisclosure/2023/Jan/20","hostname":"seclists.org","tags":["Mailing List","ARTICLE","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2023/Jan/19","label":"seclists.org/fulldisclosure/2023/Jan/19","hostname":"seclists.org","tags":["Mailing List","ARTICLE","Third Party Advisory"]},{"url":"https://security.alpinelinux.org/vuln/CVE-2022-42916","label":"security.alpinelinux.org/vuln/CVE-2022-42916","hostname":"security.alpinelinux.org","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2022-42916","label":"ubuntu.com/security/CVE-2022-42916","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/notices/USN-5702-1","label":"ubuntu.com/security/notices/USN-5702-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-42916","label":"www.cve.org/CVERecord?id=CVE-2022-42916","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2022-42916","label":"security-tracker.debian.org/tracker/CVE-2022-42916","hostname":"security-tracker.debian.org","tags":["Advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/42xxx/CVE-2022-42916.json","label":"github.com/CVEProject/cvelistV5/tree/main/cves/2022/42xxx/CVE-2022-42916.json","hostname":"github.com","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-42916","label":"nvd.nist.gov/vuln/detail/CVE-2022-42916","hostname":"nvd.nist.gov","tags":["Advisory","Oval"]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-892048.html","label":"cert-portal.siemens.com/productcert/html/ssa-892048.html","hostname":"cert-portal.siemens.com","tags":[]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-398330.html","label":"cert-portal.siemens.com/productcert/html/ssa-398330.html","hostname":"cert-portal.siemens.com","tags":[]}],"lineage":{"upstream":[],"downstream":["OPENSUSE-SU-2024:12447-1","RHSA-2022:8840","SUSE-SU-2022:3785-1","USN-5702-1"],"duplicates":[],"related":["CGA-2J5V-WPRF-P75R","CGA-6MPQ-GHRG-G593","OPENSUSE-SU-2024:12447-1","SUSE-SU-2022:3785-1","USN-5702-1"]},"timeline":[{"kind":"published","date":"2022-10-29T00:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-14T18:26:44.484Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":30,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T06:20:04.299Z","stale":false,"partial":false}}