{"id":"CVE-2026-100390","aliases":["EUVD-2026-87327","GHSA-7crf-73jx-vf27"],"status":"published","title":"Zoraxy 3.2.3 through 3.3.4 Client IP Spoofing via X-Forwarded-For IPv6","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.","severity":{"version":"4.0","score":9.1,"vector":"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","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.0029,"percentile":0.21883,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-290"],"published":"2026-09-25T20:13:09Z","modified":"2026-10-28T02:30:54Z","products":[{"vendor":"tobychui","product":"zoraxy"}],"references":[{"url":"https://github.com/tobychui/zoraxy/pull/1264","tags":["issue-tracking","patch","fix"]},{"url":"https://github.com/tobychui/zoraxy/commit/56bb3e5abb83eae42a64203028d73a001d6096c4","tags":["patch","fix"]},{"url":"https://github.com/tobychui/zoraxy/blob/v3.3.4/src/mod/auth/sso/forward/util.go#L127-L142","tags":["technical-description","article"]},{"url":"https://github.com/tobychui/zoraxy","tags":["product","package"]},{"url":"https://www.vulncheck.com/advisories/zoraxy-3.2.3-through-3.3.4-client-ip-spoofing-via-x-forwarded-for-ipv6","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-100390","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-7crf-73jx-vf27"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100390.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-100390","title":"Zoraxy 3.2.3 through 3.3.4 Client IP Spoofing via X-Forwarded-For IPv6","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.","status":"published","published":"2026-09-25T20:13:09.522Z","modified":"2026-09-25T20:42:50.268Z","cvss":[{"version":"4.0","score":9.1,"vector":"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","level":"critical","assessor":"cna"},{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T14:20:06.925367Z"}],"euvd":[{"id":"EUVD-2026-87327","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.","status":"published","published":"2026-09-25T20:13:09Z","modified":"2026-09-25T20:42:50Z","cvss":[{"version":"4.0","score":9.1,"vector":"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","level":"critical"}],"updated_at":"2026-11-02T17:27:54.622662Z"}],"ghsa":[{"id":"GHSA-7crf-73jx-vf27","title":"Zoraxy versions 3.2.3 through 3.3.4 fail to properly parse IPv6 addresses in the RemoteAddr field...","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.","status":"published","published":"2026-09-25T21:33:04Z","modified":"2026-09-25T21:33:12Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high"},{"version":"4.0","score":9.1,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T15:12:27.845198Z"}],"nvd":[{"id":"CVE-2026-100390","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.","status":"published","published":"2026-09-25T21:17:22.637Z","modified":"2026-09-30T17:32:07.107Z","cvss":[{"version":"4.0","score":9.1,"vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical","assessor":"secondary"},{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T14:12:51.721923Z"}],"osv":[{"id":"CVE-2026-100390","title":"Zoraxy 3.2.3 through 3.3.4 Client IP Spoofing via X-Forwarded-For IPv6","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.","status":"published","published":"2026-09-25T20:13:09.522Z","modified":"2026-10-28T02:30:54.531912222Z","cvss":[{"version":"4.0","score":9.1,"vector":"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","level":"critical"}],"cwes":["CWE-290"],"updated_at":"2026-11-02T15:44:53.490346Z"}]}}