Medium severity · published Oct 1, 2026
CVE-2026-94212
Apache APISIX: unauthenticated impersonation issue in saml-auth
6.4
CVSS
0.2%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 11% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AA
Apache APISIX · Apache Software Foundation
3.17.0 through 3.18.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-94212
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-94212
vendor-advisory
https://lists.apache.org/thread.html/1230fnojnmc7bfz3n0nkt7tkcld9d1sc
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