CVE-2019-11027
Ruby OpenID (aka ruby-openid) through 2.8.0 has a remotely exploitable flaw.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.97%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.97% probability · 87th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- openid/ruby-openid
- Source
- cve@mitre.org
EPSS 3.0% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/openid/ruby-openid/issues/122
- https://lists.debian.org/debian-lts-announce/2019/10/msg00014.html
- https://marc.info/?l=openid-security&m=155154717027534&w=2Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202003-09
- https://github.com/openid/ruby-openid/issues/122
- https://lists.debian.org/debian-lts-announce/2019/10/msg00014.html
- https://marc.info/?l=openid-security&m=155154717027534&w=2Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202003-09
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.