{"id":"CVE-2026-107835","revision":"323a305472d046e796f763b6099fb09f","records":[{"revision":"323a305472d046e796f763b6099fb09f","observedAt":"2026-10-25T05:17:13.11+00:00","statement":{"source":"nvd","id":"CVE-2026-107835","aliases":[],"title":"OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. Prior to 3.8.1, internal/cookies.ParseCookies in internal/cookies/cookies.go handles boundary ASCII control characters and control-only or empty cookie na…","description":"OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. Prior to 3.8.1, internal/cookies.ParseCookies in internal/cookies/cookies.go handles boundary ASCII control characters and control-only or empty cookie names differently from several backend cookie parsers. An unauthenticated attacker can craft a Cookie header so Coraza indexes or drops a cookie under a different name or value from the backend application, causing rules targeting REQUEST_COOKIES or REQUEST_COOKIES_NAMES to miss application-visible attacker data. Exploitation depends on the backend parser and affected rule scope, and interior control characters with inconsistent backend behavior are outside this advisory's remediation. This issue is fixed in version 3.8.1.","state":0,"publishedAt":"2026-10-09T18:17:05.157+00:00","modifiedAt":"2026-10-16T17:16:41.3+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N","score":4,"severity":"MEDIUM"}],"references":["https://github.com/corazawaf/coraza/commit/0b940e197ad9983fb3aa36e84f1f81ff985461af","https://github.com/corazawaf/coraza/commit/9f8521398d1ff023b958fad0b944cac265763866","https://github.com/corazawaf/coraza/releases/tag/v3.8.1","https://github.com/corazawaf/coraza/security/advisories/GHSA-g4qm-m288-5cp9"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-107835","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Awaiting Analysis","weaknesses":["CWE-436"],"productCriteria":[],"sourceDates":{"published":"2026-10-09T18:17:05.157","lastModified":"2026-10-16T17:16:41.300"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-107835","identifiers":["CVE-2026-107835"]},"retained":false,"historicalAffected":[]}],"coverage":[]}