CVE-2026-52880 Klever-Go: REST API slow-header connection exhaustion via Gin Engine.Run

Klever-Go is the Go implementation of the Klever blockchain protocol. Versions from 1.7.14 through 1.7.17 are vulnerable to a remotely triggerable denial of service. Both REST APIs are started with the Gin Engine.Run convenience method, which serves requests through Go's default HTTP server with ...

CVE-2026-52880

Klever-Go REST API (seednode and node) in versions 1.7.14–1.7.17 is affected by a denial-of-service via slow-header connections. The issue stems from Gin Engine.Run using Go’s default http.ListenAndServe with no ReadHeaderTimeout, ReadTimeout, or MaxHeaderBytes, allowing an unauthenticated client...

GO-2026-5686 klever-go: REST API slow-header connection exhaustion via Gin Engine.Run in github.com/klever-io/klever-go

klever-go: REST API slow-header connection exhaustion via Gin Engine.Run in github.com/klever-io/klever-go...

GHSA-W4C6-7R69-W7J9 klever-go: REST API slow-header connection exhaustion via Gin Engine.Run

Summary The Klever seednode REST API starts a Gin engine with Engine.RunrestAPIInterface. In Gin v1.9.1, Engine.Run calls Go's default http.ListenAndServe, which constructs an HTTP server without application-level ReadHeaderTimeout, ReadTimeout, or MaxHeaderBytes limits. An unauthenticated client...