Vulnerability in Openid Ruby-Openid

CVE-2019-11027

Ruby OpenID (aka ruby-openid) through 2.8.0 has a remotely exploitable flaw. This library is used by Rails web applications to integrate with OpenID Providers. Severity can range from medium to critical, depending on how a web application developer chose to employ the ruby-openid library. Developers who based their OpenID integration heavily on the "example app" provided by the project are at highest risk.

EPSS: 0.030 (85.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

References

Frequently asked questions

What is CVE-2019-11027?
CVE-2019-11027 is a critical-severity vulnerability in Openid Ruby-Openid. CVSS score: 9.8/10. Published 2019-06-10.
How severe is CVE-2019-11027?
Critical severity. CVSS v3 base score is 9.8 out of 10.