What is CVE-2026-9090?

CVE-2026-9090 is a critical-severity vulnerability in Casdoor, classified under CWE-347 IMPROPER VERIFICATION OF CRYPTOGRAPHIC SIGNATURE. CVSS score: 9.1/10. Published 2026-05-28.

How severe is CVE-2026-9090?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Vulnerability in Casdoor

CVE-2026-9090

Casdoor versions 2.362.0 and earlier contain a vulnerability that allows an attacker to bypass authentication by supplying an arbitrary signing certificate. The buildSpCertificateStore function extracts the X.509 certificate directly from…

EPSS: 0.000 (1.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Casdoor — versions 0

References

cret@cert.org

Frequently asked questions

What is CVE-2026-9090?: CVE-2026-9090 is a critical-severity vulnerability in Casdoor, classified under CWE-347 IMPROPER VERIFICATION OF CRYPTOGRAPHIC SIGNATURE. CVSS score: 9.1/10. Published 2026-05-28.
How severe is CVE-2026-9090?: Critical severity. CVSS v3 base score is 9.1 out of 10.