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Vulnerability details: VCID-d8va-3t7y-kuds
Vulnerability ID VCID-d8va-3t7y-kuds
Aliases CVE-2018-1000119
GHSA-688c-3x49-6rqj
Summary rack-protection gem timing attack vulnerability when validating CSRF token 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.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-203 Observable Discrepancy
CWE-385 Covert Timing Channel
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3.1 5.9 https://access.redhat.com/errata/RHSA-2018:1060
generic_textual MODERATE https://access.redhat.com/errata/RHSA-2018:1060
cvssv3 3.7 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-1000119.json
epss 0.00403 https://api.first.org/data/v1/epss?cve=CVE-2018-1000119
cvssv3.1_qr MODERATE https://github.com/advisories/GHSA-688c-3x49-6rqj
cvssv3.1 5.9 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack-protection/CVE-2018-1000119.yml
generic_textual MODERATE https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack-protection/CVE-2018-1000119.yml
cvssv3.1 5.9 https://github.com/sinatra/rack-protection
generic_textual MODERATE https://github.com/sinatra/rack-protection
cvssv3 5.9 https://github.com/sinatra/rack-protection/pull/98
cvssv3.1 5.9 https://github.com/sinatra/rack-protection/pull/98
generic_textual MODERATE https://github.com/sinatra/rack-protection/pull/98
cvssv3.1 5.9 https://github.com/sinatra/sinatra/commit/8aa6c42ef724f93ae309fb7c5668e19ad547eceb#commitcomment-27964109
generic_textual MODERATE https://github.com/sinatra/sinatra/commit/8aa6c42ef724f93ae309fb7c5668e19ad547eceb#commitcomment-27964109
cvssv3.1 5.9 https://nvd.nist.gov/vuln/detail/CVE-2018-1000119
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2018-1000119
cvssv3.1 5.9 https://www.debian.org/security/2018/dsa-4247
generic_textual MODERATE https://www.debian.org/security/2018/dsa-4247
Reference id Reference type URL
https://access.redhat.com/errata/RHSA-2018:1060
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-1000119.json
https://api.first.org/data/v1/epss?cve=CVE-2018-1000119
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1000119
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack-protection/CVE-2018-1000119.yml
https://github.com/sinatra/rack-protection
https://github.com/sinatra/rack-protection/pull/98
https://github.com/sinatra/sinatra/commit/8aa6c42ef724f93ae309fb7c5668e19ad547eceb#commitcomment-27964109
https://nvd.nist.gov/vuln/detail/CVE-2018-1000119
https://www.debian.org/security/2018/dsa-4247
1534027 https://bugzilla.redhat.com/show_bug.cgi?id=1534027
GHSA-688c-3x49-6rqj https://github.com/advisories/GHSA-688c-3x49-6rqj
RHSA-2020:4366 https://access.redhat.com/errata/RHSA-2020:4366
RHSA-2021:1313 https://access.redhat.com/errata/RHSA-2021:1313
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://access.redhat.com/errata/RHSA-2018:1060
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-1000119.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack-protection/CVE-2018-1000119.yml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://github.com/sinatra/rack-protection
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://github.com/sinatra/rack-protection/pull/98
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://github.com/sinatra/sinatra/commit/8aa6c42ef724f93ae309fb7c5668e19ad547eceb#commitcomment-27964109
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2018-1000119
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://www.debian.org/security/2018/dsa-4247
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.61102
EPSS Score 0.00403
Published At May 29, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-05-29T09:19:40.709720+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2018/03/GHSA-688c-3x49-6rqj/GHSA-688c-3x49-6rqj.json 38.6.0