CVE-2019-11027: Remotely exploitable flaw

June 10, 2019 (updated June 14, 2019)

Ruby OpenID (aka ruby-openid) 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.

References

github.com/openid/ruby-openid/releases/tag/v2.8.0
nvd.nist.gov/vuln/detail/CVE-2019-11027

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