CVE-2022-29970 — Path Traversal in Sinatra

CWE-22 — Path TraversalCWE-426 — Untrusted Search Path9 documents7 sources
Severity
7.5HIGHNVD
EPSS
0.6%
top 30.48%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Sinatrarb SinatraSinatraDebian Linux
Timeline
PublishedMay 2
Latest updateJul 22

Description

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

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 3.9 | Impact: 3.6

Affected Packages2 packages

▶RubyGemssinatra/sinatra< 2.2.0
▶NVDsinatrarb/sinatra< 2.2.0

Also affects: Debian Linux 10.0

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

5
OSV
ruby-sinatra vulnerabilities↗2025-07-22
▶
GHSA
sinatra does not validate expanded path matches↗2022-05-03
▶
OSV
sinatra does not validate expanded path matches↗2022-05-03
▶
CVEList
CVE-2022-29970: Sinatra before 2↗2022-05-02
▶
OSV
CVE-2022-29970: Sinatra before 2↗2022-05-02
▶

📋Vendor Advisories

3
Ubuntu
Sinatra vulnerabilities↗2025-07-22
▶
Red Hat
sinatra: path traversal possible outside of public_dir when serving static files↗2022-05-02
▶
Debian
CVE-2022-29970: ruby-sinatra - Sinatra before 2.2.0 does not validate that the expanded path matches public_dir...↗2022
▶
CVE-2022-29970 — Path Traversal in Sinatrarb Sinatra | cvebase