high7.5
CVE-2026-54465
websocket-driver is a WebSocket protocol handler with pluggable I/O.
Impact
websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.8.1, when websocket-driver is used to implement a WebSocket server on top of a TCP server using WebSocket::Driver.server() or to complement a WebSocket client, a peer can make a single connection consume an unbounded amount of memory by sending an HTTP request or response with a never-ending list of headers. This can lead to the receiving process running out of memory. This issue is fixed in version 0.8.1.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| rubygems | websocket-driver | < 0.8.1 | 0.8.1 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Faye | Websocket-Driver | before 0.8.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-8j3g-f24p-4mpw
- https://github.com/faye/websocket-driver-ruby/security/advisories/GHSA-8j3g-f24p-4mpw
- https://github.com/faye/websocket-driver-ruby/releases/tag/0.8.1
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/websocket-driver/CVE-2026-54465.yml
- https://www.cve.org/CVERecord/SearchResults?query=CVE-2026-54465
- https://nvd.nist.gov/vuln/detail/CVE-2026-54465
- https://github.com/faye/websocket-driver-ruby/commit/17b569f232896e71d458404ccf4854f80e987710