CVE-2026-82407

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, core/kapp/validators/validators.go Register and the runtime validator update path accept a submitted BLSPublicKey without curve, prime-order subgroup, or nonzero validation. When a validator with a malformed ke...

CVE-2026-82409

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, indexer/common.go serializedDataForUpdateAccounts places the attacker-controlled acc.Name value into an Elasticsearch bulk JSON and NDJSON request without escaping it. The SetAccountName transaction accepts val...

CVE-2026-82405 Klever-Go Account takeover: `kleverUpdateAccountPermission` authorizes on attacker-controlled `RecipientAddr` instead of the authenticated caller

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the KleverUpdateAccountPermission built-in authorizes replacement of a target account's permissions by checking attacker-controlled vmInput.RecipientAddr instead of authenticated vmInput.CallerAddr. An...

EUVD-2026-85648

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the KleverUpdateAccountPermission built-in authorizes replacement of a target account's permissions by checking attacker-controlled vmInput.RecipientAddr instead of authenticated vmInput.CallerAddr. An...

CVE-2026-82405

The Klever-Go blockchain protocol implementation (prior to version 1.7.20 ) contains a critical vulnerability in the KleverUpdateAccountPermission built-in function. The flaw arises because the authorization check incorrectly uses the attacker-controlled vmInput.RecipientAddr instead of the authe...

CVE-2026-82405 Klever-Go Account takeover: `kleverUpdateAccountPermission` authorizes on attacker-controlled `RecipientAddr` instead of the authenticated caller

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the KleverUpdateAccountPermission built-in authorizes replacement of a target account's permissions by checking attacker-controlled vmInput.RecipientAddr instead of authenticated vmInput.CallerAddr. An...

CVE-2026-82405 Klever-Go Account takeover: `kleverUpdateAccountPermission` authorizes on attacker-controlled `RecipientAddr` instead of the authenticated caller

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the KleverUpdateAccountPermission built-in authorizes replacement of a target account's permissions by checking attacker-controlled vmInput.RecipientAddr instead of authenticated vmInput.CallerAddr. An...

CVE-2026-82409 Klever-Go: Elasticsearch bulk / painless injection via on-chain account name -> explorer/indexer data forgery

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, indexer/common.go serializedDataForUpdateAccounts places the attacker-controlled acc.Name value into an Elasticsearch bulk JSON and NDJSON request without escaping it. The SetAccountName transaction accepts val...

CVE-2026-82409

Prior to version 1.7.20 , the Klever-Go blockchain implementation is vulnerable to Elasticsearch bulk / painless injection due to improper escaping of the acc.Name value in indexer/common.go. Because the SetAccountName transaction accepts raw UTF-8 characters including quotes, backslashes, and ne...

EUVD-2026-85647

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, indexer/common.go serializedDataForUpdateAccounts places the attacker-controlled acc.Name value into an Elasticsearch bulk JSON and NDJSON request without escaping it. The SetAccountName transaction accepts val...

CVE-2026-82409 Klever-Go: Elasticsearch bulk / painless injection via on-chain account name -> explorer/indexer data forgery

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, indexer/common.go serializedDataForUpdateAccounts places the attacker-controlled acc.Name value into an Elasticsearch bulk JSON and NDJSON request without escaping it. The SetAccountName transaction accepts val...

CVE-2026-82407 Klever-Go: Validator registration accepts an unvalidated BLS public key → consensus liveness DoS

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, core/kapp/validators/validators.go Register and the runtime validator update path accept a submitted BLSPublicKey without curve, prime-order subgroup, or nonzero validation. When a validator with a malformed ke...

EUVD-2026-85576

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, core/kapp/validators/validators.go Register and the runtime validator update path accept a submitted BLSPublicKey without curve, prime-order subgroup, or nonzero validation. When a validator with a malformed ke...

CVE-2026-82407

The Klever-Go blockchain implementation (prior to version 1.7.20 ) contains a vulnerability where the Register function and runtime validator update path in core/kapp/validators/validators.go accept BLSPublicKey values without performing curve, prime-order subgroup, or nonzero validation. Because...

CVE-2026-82407 Klever-Go: Validator registration accepts an unvalidated BLS public key → consensus liveness DoS

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, core/kapp/validators/validators.go Register and the runtime validator update path accept a submitted BLSPublicKey without curve, prime-order subgroup, or nonzero validation. When a validator with a malformed ke...

CVE-2026-82407 Klever-Go: Validator registration accepts an unvalidated BLS public key → consensus liveness DoS

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, core/kapp/validators/validators.go Register and the runtime validator update path accept a submitted BLSPublicKey without curve, prime-order subgroup, or nonzero validation. When a validator with a malformed ke...

CVE-2026-52744

GoCD is a continuous deliver server. From 20.2.0 until 26.1.0, the internal GoCD UI fetch-artifact auto-suggestion API at /go/api/internal/pipelines//upstream does not adequately authorize access to upstream dependency data. An authenticated user can retrieve inter-pipeline dependency hierarchy...

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...

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...