CVE-2022-29970

High

Published: 02 May 2022

Published

02 May 2022

Modified

04 November 2025

KEV Added

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Patch

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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Score 0.0060 70.0th percentile

Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2022-29970 is a high-severity Path Traversal (CWE-22) vulnerability in Sinatrarb Sinatra. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 30.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

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

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

sinatrarb

sinatra

≤ 2.2.0

debian

debian linux

10.0

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-22

Validates pathnames and filenames to prevent traversal outside intended directories.