A denial of service vulnerability in the Range header parsing component of Rack >= 1.5.0. A Carefully crafted input can cause the Range header parsing component in Rack to take an unexpected amount of time, possibly resulting in a denial of service attack vector. Any applications that deal with Range requests (such as streaming applications, or applications that serve files) may be impacted.
CVE-2022-44570
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 3.1%, top 13% of all CVEs by exploit prediction. 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(medium)
- EPSS
- 73.4%
- KEV
- Not listed
Published
February 9, 2023
Last Modified
February 13, 2025
References (6)
- support@hackeronehttps://discuss.rubyonrails.org/t/cve-2022-44570-possible-denial-of-service-vulnerability-in-racks-range-header-parsing/82125
- support@hackeronehttps://security.netapp.com/advisory/ntap-20231208-0010/
- support@hackeronehttps://www.debian.org/security/2023/dsa-5530
- af854a3a-2127-422b-91ae-364da2661108https://discuss.rubyonrails.org/t/cve-2022-44570-possible-denial-of-service-vulnerability-in-racks-range-header-parsing/82125
- af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20231208-0010/
- af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2023/dsa-5530
Vendor Advisories for CVE-2022-44570(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(3)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | ruby-rack (2.1.4-5ubuntu1+esm3) @ jammy | 2026-05-25 | ubuntu |
| ubuntu | ruby-rack (2.1.4-5ubuntu1.1) @ jammy | 2026-05-25 | ubuntu |
| redhat | rubygem-rack-0:2.2.7-1.el8sat | 2023-11-08 | 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 |
|---|---|---|---|
| rack | 3.0.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4 | 3.0.4.1 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(2)
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 8× in last 7d / 43× 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.
- 2026-07-11 08:25 UTCEPSS rescore
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- 2026-06-28 05:52 UTCOSV refresh
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- 2026-06-25 13:48 UTCEPSS rescore
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- 2026-06-10 16:47 UTCOSV refresh
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- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-25 07:08 UTCEG score recompute
- 2026-05-25 07:08 UTCVendor advisory
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Frequently asked(5)
What is CVE-2022-44570?
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What is the CVSS score of CVE-2022-44570?
How do I remediate CVE-2022-44570?
Dependency Blast Radius
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