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CVE-2022-29970

Sinatra before 2.2.0 does not validate that the expanded path matches public_dir when serving static files.

Published: May 2, 2022Updated: Nov 4, 2025 Sources: CVE List NVD GHSA BDUCWE-22
NVD MITRE
7.5CVSSHIGH
EPSS Score
1.9%
Top 22.6%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

sinatra does not validate expanded path matches

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-22

Affected Products

sinatraRubyGemsOSS Libraries
n/an/a
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
rubygemspackage-ecosystemOSS Libraries
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
ооо «ред софт»commercialRUOperating Systemsaka red soft
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
and 4 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Collection
Discovery
View detailed technique mapping

References

https://nvd.nist.gov/vuln/detail/CVE-2022-29970
nvd.nist.gov
https://github.com/sinatra/sinatra/pull/1683
github.com
https://github.com/sinatra/sinatra/pull/1683/commits/462c3ca1db53ed3cfc394cf5948e9c948ad1c10e
github.com
and 13 more references View all →

Timeline

Published
May 2, 2022
Last Updated
Nov 4, 2025

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