Severity:
CVSS 4.0: 6.4 (medium)
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
Affected versions:
- Apache APISIX 3.17.0 through 3.18.0
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.
Credit:
LucasFutures (reporter)
shreemaan-abhishek (coordinator)
shreemaan-abhishek (remediation developer)
References:
https://apisix.apache.org
https://www.cve.org/CVERecord?id=CVE-2026-94212
