Sinatra before 2.2.0 does not validate that the expanded path matches public_dir when serving static files.
CVE-2022-29970
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(low)
- EPSS
- 80.5%
- KEV
- Not listed
Published
May 2, 2022
Last Modified
November 4, 2025
References (5)
- cve@mitrehttps://github.com/sinatra/sinatra/pull/1683/commits/462c3ca1db53ed3cfc394cf5948e9c948ad1c10e
- cve@mitrehttps://lists.debian.org/debian-lts-announce/2022/10/msg00034.html
- af854a3a-2127-422b-91ae-364da2661108https://github.com/sinatra/sinatra/pull/1683/commits/462c3ca1db53ed3cfc394cf5948e9c948ad1c10e
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/10/msg00034.html
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/09/msg00020.html
Vendor Advisories for CVE-2022-29970(4)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2022:4661Red Hat Product SecurityHigh
Red Hat Security Advisory: pcs security update
- RHSA-2022:4587Red Hat Product SecurityHigh
Red Hat Security Advisory: pcs security update
- RHSA-2022:2253Red Hat Product SecurityHigh
Red Hat Security Advisory: pcs security update
- RHSA-2022:2256Red Hat Product SecurityHigh
Red Hat Security Advisory: pcs security update
Patch Availability(7)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | ruby-sinatra-contrib (2.0.8.1-2+deb11u1build0.22.04.1) @ jammy | 2026-05-23 | ubuntu |
| redhat | rubygem-sinatra-1:2.2.0-1.el8sat | 2022-11-16 | redhat |
| redhat | pcs-0:0.10.12-6.el8_6.1 | 2022-05-18 | redhat |
| redhat | pcs-0:0.11.1-10.el9_0.1 | 2022-05-18 | redhat |
| redhat | pcs-0:0.10.4-6.el8_2.2 | 2022-05-16 | redhat |
| redhat | pcs-0:0.10.2-4.el8_1.2 | 2022-05-16 | redhat |
| redhat | pcs-0:0.10.8-1.el8_4.1 | 2022-05-16 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
RubyGems(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| sinatra | 0.1.0 ... 2.1.0 (88 versions) | 2.2.0 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(3)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 11× in last 7d / 47× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 108 total refreshes for this CVE.
- 2026-07-22 14:06 UTCEPSS rescore
- 2026-07-22 14:06 UTCEPSS rescore
- 2026-07-21 15:22 UTCEPSS rescore
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- 2026-07-13 04:37 UTCOSV refresh
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- 2026-07-07 13:44 UTCEPSS rescore
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- 2026-06-07 18:46 UTCOSV refresh
- 2026-06-07 15:23 UTCEPSS rescore
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- 2026-05-27 13:39 UTCEPSS rescore
Frequently asked(5)
What is CVE-2022-29970?
When was CVE-2022-29970 disclosed?
Is CVE-2022-29970 actively exploited?
What is the CVSS score of CVE-2022-29970?
How do I remediate CVE-2022-29970?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2022-29970
Is Your Infrastructure Affected by CVE-2022-29970?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.