{"id":"CVE-2026-111755","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-111755","generatedAt":"2026-10-28T10:48:20.149Z","title":"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…","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.","published":"2026-10-19T18:17:00.000Z","lastModified":"2026-10-19T21:13:40.000Z","status":"Awaiting Analysis","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"4.0","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/M"},"cwe":["CWE-185","CWE-200"],"affected":[],"epss":{"score":0.00471,"percentile":0.40573,"date":"2026-10-27","history":[{"date":"2026-10-20","score":0.00436,"percentile":0.36598}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.47%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-19T18:17:00.000Z","detail":{"score":"8.2","severity":"HIGH","publishedAt":"2026-10-19T18:17:00.260Z"},"summary":"New CVE, high severity (CVSS 8.2)."}],"references":[{"url":"https://github.com/follow-redirects/follow-redirects/commit/080a76d0e125b37bf81717368a61d5dc37aa56c8","source":"security-advisories@github.com"},{"url":"https://github.com/follow-redirects/follow-redirects/releases/tag/v1.16.1","source":"security-advisories@github.com"},{"url":"https://github.com/follow-redirects/follow-redirects/security/advisories/GHSA-8r9p-f939-6h3c","source":"security-advisories@github.com"},{"url":"https://github.com/follow-redirects/follow-redirects/security/advisories/GHSA-8r9p-f939-6h3c","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-111755","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}