{"schemaVersion":3,"id":"CVE-2026-111755","aliases":["DEBIAN-CVE-2026-111755","GHSA-8r9p-f939-6h3c"],"status":"published","duplicateOf":null,"title":null,"description":"follow-redirects is a Node.js HTTP and HTTPS client wrapper that automatically follows redirects. From 1.16.0 until 1.16.1, escapeRegex leaves valid header-name metacharacters unescaped in sensitiveHeaders. When an application declares a sensitive header whose name contains ^ or | and follows a cross-origin or HTTPS-to-HTTP redirect, unescaped regular-expression metacharacters prevent the generated filter from matching the declared header name, and the credential header is forwarded to an attacker-controlled redirect target. This issue is fixed in version 1.16.1.","dates":{"published":"2026-10-19T17:27:09.215Z","modified":"2026-10-19T18:00:16.343Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.2,"severity":"high","version":"4.0","versionLabel":"v4.0","source":"CVE.org","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":8.2,"severity":"high","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":8.2,"severity":"high","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Npm","score":8.2,"severity":"high","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","exploitability":null,"impact":null,"computed":true}]},"epss":{"probability":0.00436,"percentile":0.36598,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[{"date":"2026-10-20T00:00:00.000Z","score":0.00436,"percentile":0.36598}],"last30":[{"date":"2026-10-20T00:00:00.000Z","score":0.00436,"percentile":0.36598}]},"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-185","name":"Incorrect Regular Expression","description":"The product specifies a regular expression in a way that causes data to be improperly matched or compared.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/185.html"},{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor","description":"The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/200.html"}],"affected":[{"vendor":"debian","product":"node-follow-redirects","name":"node-follow-redirects","label":"node-follow-redirects","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/node-follow-redirects","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"follow-redirects","product":"follow-redirects","name":"follow-redirects","label":"follow-redirects","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 1.16.0, < 1.16.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 1.16.0, < 1.16.1","eol":null,"hubHref":"/vendor/follow-redirects/follow-redirects"},{"vendor":"Npm","product":"follow-redirects","name":"follow-redirects","label":"follow-redirects","ecosystem":"Npm","cpePart":null,"purl":"pkg:npm/follow-redirects","purlType":"npm","versions":[{"text":"≥ 1.16.0, < 1.16.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 1.16.0, < 1.16.1","eol":null,"hubHref":null}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/follow-redirects/follow-redirects/security/advisories/GHSA-8r9p-f939-6h3c","label":"github.com/follow-redirects/follow-redirects/security/advisories/GHSA-8r9p-f939-6h3c","hostname":"github.com","tags":["X Refsource CONFIRM","WEB"]},{"url":"https://github.com/follow-redirects/follow-redirects/commit/080a76d0e125b37bf81717368a61d5dc37aa56c8","label":"github.com/follow-redirects/follow-redirects/commit/080a76d0e125b37bf81717368a61d5dc37aa56c8","hostname":"github.com","tags":["X Refsource MISC","WEB"]},{"url":"https://github.com/follow-redirects/follow-redirects/releases/tag/v1.16.1","label":"github.com/follow-redirects/follow-redirects/releases/tag/v1.16.1","hostname":"github.com","tags":["X Refsource MISC","WEB"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-111755","label":"security-tracker.debian.org/tracker/CVE-2026-111755","hostname":"security-tracker.debian.org","tags":["Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111755","label":"nvd.nist.gov/vuln/detail/CVE-2026-111755","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/follow-redirects/follow-redirects","label":"github.com/follow-redirects/follow-redirects","hostname":"github.com","tags":["PACKAGE"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-10-19T17:27:09.215Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-19T18:00:16.343Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":33,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T19:20:24.169Z","stale":false,"partial":false}}