High severity7.5NVD Advisory· Published Jul 17, 2026· Updated Aug 6, 2026
CVE-2026-54465
CVE-2026-54465
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
websocket-driverRubyGems | < 0.8.1 | 0.8.1 |
Affected products
5- Range: <0.8.1
- Range: <0.8.1
- osv-coords2 versions
< 18.1.6-r29+ 1 more
- (no CPE)range: < 18.1.6-r29
- (no CPE)range: < 0.8.1
Patches
Vulnerability mechanics
References
7- github.com/faye/websocket-driver-ruby/commit/17b569f232896e71d458404ccf4854f80e987710nvdPatchWEB
- github.com/advisories/GHSA-8j3g-f24p-4mpwghsaADVISORY
- github.com/faye/websocket-driver-ruby/security/advisories/GHSA-8j3g-f24p-4mpwnvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-54465ghsaADVISORY
- github.com/faye/websocket-driver-ruby/releases/tag/0.8.1ghsaWEB
- github.com/rubysec/ruby-advisory-db/blob/master/gems/websocket-driver/CVE-2026-54465.ymlghsaWEB
- www.cve.org/CVERecord/SearchResultsghsaWEB
News mentions
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