CVE-2018-1000119
Sinatra rack-protection versions 1.5.4 and 2.0.0.rc3 and earlier contains a timing attack vulnerability in the CSRF token checking that can result in signatures can be exposed.
Does this matter?
Lower severity and a low EPSS score (2.40%). Track it; it rarely justifies an emergency change on its own.
Description
Sinatra rack-protection versions 1.5.4 and 2.0.0.rc3 and earlier contains a timing attack vulnerability in the CSRF token checking that can result in signatures can be exposed. This attack appear to be exploitable via network connectivity to the ruby application. This vulnerability appears to have been fixed in 1.5.5 and 2.0.0.
- CVSS 3.0
- 5.9 MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 2.40% probability · 84th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-203
- Affected
- sinatrarb/rack-protection
- Source
- cve@mitre.org
EPSS 2.4% 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://access.redhat.com/errata/RHSA-2018:1060Third Party Advisory
- https://github.com/sinatra/rack-protection/pull/98Issue Tracking, Third Party Advisory
- https://github.com/sinatra/sinatra/commit/8aa6c42ef724f93ae309fb7c5668e19ad547eceb#commitcomment-27964109Issue Tracking, Patch, Third Party Advisory
- https://www.debian.org/security/2018/dsa-4247
- https://access.redhat.com/errata/RHSA-2018:1060Third Party Advisory
- https://github.com/sinatra/rack-protection/pull/98Issue Tracking, Third Party Advisory
- https://github.com/sinatra/sinatra/commit/8aa6c42ef724f93ae309fb7c5668e19ad547eceb#commitcomment-27964109Issue Tracking, Patch, Third Party Advisory
- https://www.debian.org/security/2018/dsa-4247
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.