Vulnerability · Published Oct 1, 2026 · Assigned by apache

CVE-2026-94212Apache APISIX: unauthenticated impersonation issue in saml-auth

Medium 6.4

In plain English

A medium-severity security flaw in Apache APISIX from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities).

Severity (CVSS 4.0)6.4Medium

Exploit odds (30 days)0.2%top 89.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Improper verification of cryptographic signature vulnerability in Apache APISIX. Any unauthenticated attacker could impersonate any user on every route protected by the saml-auth plugin under default configuration. This issue affects Apache APISIX: from 3.17.0 through 3.18.0. Users are recommended to upgrade to version 3.19.0, which fixes the issue.

Affected products (as reported)

Vendor	Product	Versions
Apache Software Foundation	Apache APISIX	3.17.0 – through 3.18.0

Weakness: CWE-347 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

In plain English

Official description

Affected products (as reported)

References