CVE-2024-47220

✕ Withdrawn — historical dataNONECVSS 0.0Trending — 4 sources updated this weekElevated
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 0%CVSS: —Exploit: NoneExposed: 0

A fix is available — apply it.

An issue was discovered in the WEBrick toolkit through 1.8.1 for Ruby. It allows HTTP request smuggling by providing both a Content-Length header and a Transfer-Encoding header, e.g., "GET /admin HTTP/1.1\r\n" inside of a "POST /user HTTP/1.1\r\n" request. NOTE: the supplier's position is "Webrick should not be used in production."

CVSS v3
—
EG Score
0.0(none)
EG Risk
0
EG Risk 0/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses intrinsic severity with real-world exploitation and automatability, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. It is distinct from the 0–10 EG Score, which measures severity.

EPSS
31.6%
KEV
Not listed

Published

September 22, 2024

Last Modified

July 17, 2026

References (4)

Vendor Advisories for CVE-2024-47220(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubunturuby-webrick (1.7.0-3ubuntu0.1) @ jammy2026-05-21ubuntu
ubunturuby-webrick (1.8.1-1ubuntu0.1) @ noble2026-05-21ubuntu
ubunturuby2.5-doc (2.5.1-1ubuntu1.16+esm6) @ bionic2026-05-21ubuntu
redhatopenshift-logging/vector-rhel9:v0.34.1-302025-02-12redhat

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)
PackageVulnerable rangeFixed inDependents
webrick1.3.1 ... 1.8.1 (14 versions)1.8.2—

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 12× 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.

Showing the most recent 100 of 112 total refreshes for this CVE.

  1. 2026-07-23 02:41 UTCEG score recompute
  2. 2026-07-21 15:23 UTCEPSS rescore
  3. 2026-07-20 17:06 UTCEPSS rescore
  4. 2026-07-19 14:30 UTCEPSS rescore
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  10. 2026-07-17 18:00 UTCNVD update
  11. 2026-07-17 15:49 UTCMITRE cvelistV5
  12. 2026-07-16 17:02 UTCEPSS rescore
  13. 2026-07-15 16:57 UTCEPSS rescore
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  22. 2026-07-11 02:11 UTCOSV refresh
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  1. 2026-07-07 13:45 UTCEPSS rescore
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  19. 2026-06-22 14:25 UTCEPSS rescore
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  21. 2026-06-22 09:32 UTCOSV refresh
  22. 2026-06-21 14:56 UTCEPSS rescore
  23. 2026-06-21 01:59 UTCEPSS rescore
  24. 2026-06-21 01:58 UTCEPSS rescore
  25. 2026-06-19 19:25 UTCEPSS rescore
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  44. 2026-06-07 15:24 UTCEPSS rescore
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  54. 2026-06-04 11:39 UTCOSV refresh
  55. 2026-06-02 20:12 UTCEPSS rescore
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  75. 2026-05-22 21:16 UTCEPSS rescore

Frequently asked(4)

What is CVE-2024-47220?
CVE-2024-47220 is a none vulnerability published on September 22, 2024. An issue was discovered in the WEBrick toolkit through 1.8.1 for Ruby. It allows HTTP request smuggling by providing both a Content-Length header and a Transfer-Encoding header, e.g., "GET /admin HTTP/1.1\r\n" inside of a "POST /user HTTP/1.1\r\n" request. NOTE: the supplier's position is "Webrick…
When was CVE-2024-47220 disclosed?
CVE-2024-47220 was first published in the National Vulnerability Database on September 22, 2024, with the most recent update on July 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-47220 actively exploited?
CVE-2024-47220 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 31.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2024-47220?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-47220, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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