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CVE-2022-29970

26
FAUCET Score

CVE-2022-29970 is a path traversal vulnerability affecting Sinatra versions prior to 2.2.0, impacting Debian Linux and Sinatra applications. This flaw allows an unauthenticated attacker to access arbitrary files outside the intended public directory by crafting a malicious request. With a CVSS score of 7.5 (HIGH), it poses a significant risk of information disclosure (C:H) without requiring user interaction or complex attack methods. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or notable community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.2.0CPE matchmatch criteria
cpe:2.3:a:sinatrarb:sinatra:*:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.18%
Probability of exploitation in next 30 days
EPSS Percentile
80.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0218 is in the 65th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (19)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Extended Update SupportFixed in: pcs-0:0.10.8-1.el8_4.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: pcs-0:0.11.1-10.el9_0.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Satellite 6.12 for RHEL 8Fixed in: rubygem-sinatra-1:2.2.0-1.el8sat
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: pcs-0:0.10.12-6.el8_6.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.1 Update Services for SAP SolutionsFixed in: pcs-0:0.10.2-4.el8_1.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Extended Update SupportFixed in: pcs-0:0.10.4-6.el8_2.2
View patch
rubygemspatch availablevia ghsa
Product: sinatraFixed in: 2.2.0
redhatno patchvia redhat_api
Product: Red Hat Satellite 6Fixed in: tfm-rubygem-mustermann
redhatno patchvia redhat_api
Product: Red Hat Satellite 6Fixed in: tfm-rubygem-rack-protection
redhatno patchvia redhat_api
Product: Red Hat Satellite 6Fixed in: tfm-rubygem-sinatra
redhatno patchvia redhat_api
Product: Red Hat Storage 3Fixed in: rubygem-sinatra
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: pcs
redhatno patchvia redhat_api
Product: Red Hat Satellite 6Fixed in: tfm-ror51-rubygem-mustermann
redhatno patchvia redhat_api
Product: Red Hat Satellite 6Fixed in: tfm-ror51-rubygem-rack-protection
redhatno patchvia redhat_api
Product: Red Hat Satellite 6Fixed in: tfm-ror51-rubygem-sinatra
redhatno patchvia redhat_api
Product: Red Hat Satellite 6Fixed in: tfm-ror52-rubygem-mustermann
redhatno patchvia redhat_api
Product: Red Hat Satellite 6Fixed in: tfm-ror52-rubygem-rack-protection
redhatno patchvia redhat_api
Product: Red Hat Satellite 6Fixed in: tfm-ror52-rubygem-sinatra

Vendor Advisories (2)

rubygemsGHSA-qp49-3pvw-x4m5high

sinatra does not validate expanded path matches

May 3, 2022
redhatCVE-2022-29970Important

sinatra: path traversal possible outside of public_dir when serving static files

May 2, 2022

References

lists.debian.org / debian-lts-announce/2024/09/msg00020.html
github.com / sinatra/sinatra/pull/1683/commits/462c3ca1db53ed3cfc394cf5948e9c948ad1c10e
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2022/10/msg00034.html
Mailing ListThird Party Advisory