GHSA-4FWH-WRM6-97XM Klever-Go: Unauthenticated WebSocket /subscribe: no read-size limit, no connection cap, permissive origin -> remote node memory/goroutine exhaustion (DoS)

Summary The unauthenticated WebSocket endpoint GET /subscribe is registered open: true by default config/node/api.yaml and lets a remote, unauthenticated client exhaust the node's memory and goroutines. Because the REST API runs IN-PROCESS with the node — network/api/api.go Start... ends with...

CVE-2026-86065 Klever-Go: Unauthenticated WebSocket /subscribe: no read-size limit, no connection cap, permissive origin -> remote node memory/goroutine exhaustion (DoS)

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the default-open GET /subscribe endpoint in network/api/websocket/routes.go accepts unauthenticated WebSocket clients with permissive origin handling, does not call SetReadLimit to bound message size, and has n...

CVE-2026-86065 Klever-Go: Unauthenticated WebSocket /subscribe: no read-size limit, no connection cap, permissive origin -> remote node memory/goroutine exhaustion (DoS)

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the default-open GET /subscribe endpoint in network/api/websocket/routes.go accepts unauthenticated WebSocket clients with permissive origin handling, does not call SetReadLimit to bound message size, and has n...

EUVD-2026-85575

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the default-open GET /subscribe endpoint in network/api/websocket/routes.go accepts unauthenticated WebSocket clients with permissive origin handling, does not call SetReadLimit to bound message size, and has n...

CVE-2026-86065 Klever-Go: Unauthenticated WebSocket /subscribe: no read-size limit, no connection cap, permissive origin -> remote node memory/goroutine exhaustion (DoS)

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the default-open GET /subscribe endpoint in network/api/websocket/routes.go accepts unauthenticated WebSocket clients with permissive origin handling, does not call SetReadLimit to bound message size, and has n...

CVE-2026-86065

Klever-Go , the Go implementation of the Klever blockchain protocol, is vulnerable to remote denial-of-service (DoS) via the unauthenticated GET /subscribe endpoint prior to version 1.7.20 . The vulnerability stems from three compounding gaps: permissive origin handling (allowing any web origin),...

Klever-Go: /log controls global node logging

An unauthenticated client can connect to GET /log, send an arbitrary logger profile as the first WebSocket message, and mutate the node's global logging configuration before receiving live logs from the process. I confirmed this against a local validator built from this repository: an...

GHSA-9V8P-FRVJ-2PCM Klever-Go: /log controls global node logging

An unauthenticated client can connect to GET /log, send an arbitrary logger profile as the first WebSocket message, and mutate the node's global logging configuration before receiving live logs from the process. I confirmed this against a local validator built from this repository: an...

CVE-2026-86064 Klever-Go: /log controls global node logging

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the default-open GET /log WebSocket route configured in config/node/api.yaml and registered by network/api/api.go does not require authentication. The first client message is parsed as a logger Profile in...

CVE-2026-86064 Klever-Go: /log controls global node logging

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the default-open GET /log WebSocket route configured in config/node/api.yaml and registered by network/api/api.go does not require authentication. The first client message is parsed as a logger Profile in...

CVE-2026-86064 Klever-Go: /log controls global node logging

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the default-open GET /log WebSocket route configured in config/node/api.yaml and registered by network/api/api.go does not require authentication. The first client message is parsed as a logger Profile in...

EUVD-2026-85574

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the default-open GET /log WebSocket route configured in config/node/api.yaml and registered by network/api/api.go does not require authentication. The first client message is parsed as a logger Profile in...

CVE-2026-86064

The Klever-Go blockchain protocol implementation is vulnerable to an unauthenticated management-plane flaw where a remote client can access and manipulate global logging configurations. Specifically, the GET /log WebSocket route—exposed by default in config/node/api.yaml and registered in network...

EUVD-2026-85573

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the native marketplace function core/kapp/market/market.go Buy does not check IsClaimed before accepting a bid. A seller can use the Claim seller-accept branch to settle a resting-bid auction while leaving the...

CVE-2026-82406

The Klever-Go blockchain protocol implementation contains a high-severity vulnerability in the native marketplace function located at core/kapp/market/market.go. The Buy() function fails to verify the IsClaimed status before accepting a bid, while other functions like Claim and CancelOrder do enf...

CVE-2026-82406 Klever-Go: Zombie-order theft: `Buy` missing `IsClaimed` guard in native marketplace

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the native marketplace function core/kapp/market/market.go Buy does not check IsClaimed before accepting a bid. A seller can use the Claim seller-accept branch to settle a resting-bid auction while leaving the...

CVE-2026-82406 Klever-Go: Zombie-order theft: `Buy` missing `IsClaimed` guard in native marketplace

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the native marketplace function core/kapp/market/market.go Buy does not check IsClaimed before accepting a bid. A seller can use the Claim seller-accept branch to settle a resting-bid auction while leaving the...

CVE-2026-82406 Klever-Go: Zombie-order theft: `Buy` missing `IsClaimed` guard in native marketplace

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the native marketplace function core/kapp/market/market.go Buy does not check IsClaimed before accepting a bid. A seller can use the Claim seller-accept branch to settle a resting-bid auction while leaving the...

PT-2026-97525

Name of the Vulnerable Software and Affected Versions Klever-Go versions prior to 1.7.20 Description The native marketplace implementation contains a logic error where the Buy function in core/kapp/market/market.go fails to verify the IsClaimed status of an order. This allows a seller to settle a...

PT-2026-97539

Name of the Vulnerable Software and Affected Versions Klever-Go versions prior to 1.7.20 Description An issue exists in the Elasticsearch indexer component where the serializedDataForUpdateAccounts function in indexer/common.go fails to escape the acc.Name variable when constructing bulk JSON and...