CVE-2026-107835Medium· 4.0▾ TwilightPoC availableOWASP 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…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 22 · likelihood 0.1 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Oct 11.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.3%
Exploit / PoC code exists
Last analysed / modified upstream
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.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
github.com/corazawaf/coraza/v3 < 3.8.1Patched in:
github.com/corazawaf/coraza/v3 3.8.1Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
GHSA-g4qm-m288-5cp9Medium· 4.0Coraza has Cookie Parser Confusion
CVE-2026-114101Medium· 4.0Coraza: Multipart filename* (RFC 5987) charset restriction lets a decoy filename bypass FILES-based rules
CVE-2026-107825Medium· 4.0OWASP Coraza WAF is a golang modsecurity compatible web application firewall library
CVE-2026-107826High· 7.5OWASP Coraza WAF is a golang modsecurity compatible web application firewall library
GHSA-5gj4-9gm7-2fx2Medium· 5.8Coraza body processor has a JSON key collision that allows unauthenticated attackers to bypass OWASP CRS inspection
GHSA-3wr7-993q-jrffMedium· 4.0Coraza: Multipart filename* (RFC 5987) charset restriction lets a decoy filename bypass FILES-based rules