websocket-driver Known Vulnerabilities & Fixes
websocket-driver has 4 known security vulnerabilities in RubyGems (Ruby). Upgrade to version 0.8.2 or later to resolve all known issues. Data sourced from OSV, enriched with EPSS exploit probability and CISA KEV.
Low Immediate Risk
No actively exploited vulnerabilities detected. Monitor and update in your next maintenance window.
Recommended safe version: 0.8.2
Upgrading to 0.8.2 or later resolves all 4 known vulnerabilities in websocket-driver. Run: gem install websocket-driver -v 0.8.2
Is websocket-driver in your project?
Check if you're affected and upgrade to 0.8.2 to stay secure.
Security Summary
- 4 affected version ranges have been identified across these 4 advisories.
- 100% of known issues have a published fixed version.
- Remediation: gem update websocket-driver
Vulnerabilities
4 unique vulnerabilities — sorted by exploitation risk (KEV → EPSS → CVSS). Click a CVE/GHSA ID for full details. First disclosed Jul 15, 2026, most recently Jul 21, 2026 (6 days apart).
| CVE / GHSA | Severity | Affected | Fixed In |
|---|---|---|---|
| CVE-2026-61666 websocket-driver-ruby: Denial of service via malformed Host header | HIGH | 0.1.0, 0.2.0, 0.2.1, 0.2.2 (+29 more) | 0.8.2 |
| CVE-2026-54463 websocket-driver: Memory exhaustion via abuse of protocol length headers | MEDIUM | 0.1.0, 0.2.0, 0.2.1, 0.2.2 (+28 more) | 0.8.1 |
| CVE-2026-54465 websocket-driver: Memory exhaustion in HTTP header parser | MEDIUM | 0.1.0, 0.2.0, 0.2.1, 0.2.2 (+28 more) | 0.8.1 |
| CVE-2026-54464 websocket-driver: Resource limit bypass via message compression | MEDIUM | 0.1.0, 0.2.0, 0.2.1, 0.2.2 (+28 more) | 0.8.1 |
About This Data
Vulnerability data for websocket-driver is sourced from the Open Source Vulnerability (OSV) database, aggregating reports from GitHub Advisory Database, NIST NVD, and ecosystem-specific sources.
CVSS (Common Vulnerability Scoring System) scores reflect exploitability and impact. EPSS (Exploit Prediction Scoring System) scores indicate the probability of exploitation within the next 30 days. Vulnerabilities marked with are listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
Related RubyGems (Ruby) Packages
Other packages in this ecosystem, ranked by shared vulnerabilities where available.
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