Vulnerability Description
Zoraxy versions 3.2.3 through 3.3.4 fail to properly parse IPv6 addresses in the RemoteAddr field when setting forwarded headers. Unauthenticated attackers connecting over IPv6 can supply arbitrary X-Forwarded-For values to spoof their source IP and bypass authorization provider IP-based access controls.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/tobychui/zoraxy
- https://github.com/tobychui/zoraxy/blob/v3.3.4/src/mod/auth/sso/forward/util.go#
- https://github.com/tobychui/zoraxy/commit/56bb3e5abb83eae42a64203028d73a001d6096
- https://github.com/tobychui/zoraxy/pull/1264
- https://www.vulncheck.com/advisories/zoraxy-3.2.3-through-3.3.4-client-ip-spoofi
FAQ
What is CVE-2026-100390?
CVE-2026-100390 is a vulnerability with a CVSS score of 7.4 (HIGH). Zoraxy versions 3.2.3 through 3.3.4 fail to properly parse IPv6 addresses in the RemoteAddr field when setting forwarded headers. Unauthenticated attackers connecting over IPv6 can supply arbitrary X-...
How severe is CVE-2026-100390?
CVE-2026-100390 has been rated HIGH with a CVSS base score of 7.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-100390?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.