CVE-2026-100390: tobychui zoraxy

Zoraxy 3.2.3 through 3.3.4 Client IP Spoofing via X-Forwarded-For IPv6

CVSS 9.1 CriticalCriticalEPSS 0.0029 · 21st percentile

Critical, because:

CVSS score 9.1: 9.0 or more.

Published by the CVE Program (CNA: VulnCheck) at 25 Sept 2026, 20:13 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
tobychui	zoraxy	affected 3.2.3 to 3.3.4, inclusive semver Other versions: unaffected

Identifiers

CVE-2026-100390

CNA

VulnCheck

Weakness (CWE)

CWE-290

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
9.1	Critical	4.0	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N	CNA (VulnCheck)Used for this record
7.4	High	3.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.0029, the 21st percentile, on 9 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 25 Sept 2026. New records show when each source confirmed them.

Sources

References from the CNA

github.com/tobychui/zoraxy/pull/1264 issue-trackingpatch
github.com/tobychui/zoraxy/commit/56bb3e5abb83eae42a64203028d73a001d6096c4 patch
github.com/tobychui/zoraxy/blob/v3.3.4/src/mod/auth/sso/forward/util.go#L127-L142 technical-description
github.com/tobychui/zoraxy product
www.vulncheck.com/advisories/zoraxy-3.2.3-through-3.3.4-client-ip-spoofing-via-x-forwarded-for-ipv6 third-party-advisory

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.