GO-2026-6583 Klever-Go: /log controls global node logging in github.com/klever-io/klever-go

Klever-Go: /log controls global node logging in github.com/klever-io/klever-go...

CVE-2026-82406

creationtimestamp| type| source ---|---|--- 2026-09-23 22:35:37+00:00| published-proof-of-concept| https://github.com/klever-io/klever-go/security/advisories/GHSA-26r5-4mm2-px5c...

GHSA-9WH6-9HQ7-9688 Klever-Go: Validator registration accepts an unvalidated BLS public key → consensus liveness DoS

Location: core/kapp/validators/validators.go:201 Register, genesis/checking/nodesSetupChecker.go:73. core/consensus/slot/bls/subslotStartSlot.go:165 core/consensus/.../headerSignatureVerify.go:123 Create.... Description Klever uses a BDN Boneh-Drijvers-Neven BLS multi-signature over BLS12-381 to...

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

Location: core/kapp/validators/validators.go:201 Register, genesis/checking/nodesSetupChecker.go:73. core/consensus/slot/bls/subslotStartSlot.go:165 core/consensus/.../headerSignatureVerify.go:123 Create.... Description Klever uses a BDN Boneh-Drijvers-Neven BLS multi-signature over BLS12-381 to...

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

Component: Elasticsearch indexer indexer/ Primary location: indexer/common.go:2395-2407 serializedDataForUpdateAccounts Entry point: SetAccountName native transaction contract type 12 — core/process/transaction/txProcess.go:688 --- Description When the node indexes account updates to Elasticsearc...

GHSA-7C7C-373R-GFJJ Klever-Go: Elasticsearch bulk / painless injection via on-chain account name -> explorer/indexer data forgery

Component: Elasticsearch indexer indexer/ Primary location: indexer/common.go:2395-2407 serializedDataForUpdateAccounts Entry point: SetAccountName native transaction contract type 12 — core/process/transaction/txProcess.go:688 --- Description When the node indexes account updates to Elasticsearc...

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

Location: core/kapp/market/market.go — Buy approx. L281–436\ Severity: High The native marketplace enforces an IsClaimed guard in Claim market.go:752, CancelOrder market.go:1125, and orderEscrowAmount market.go:251, but not in Buy. Marketplace escrow is virtual: the market KApp account never...

GHSA-26R5-4MM2-PX5C Klever-Go: Zombie-order theft: `Buy` missing `IsClaimed` guard in native marketplace

Location: core/kapp/market/market.go — Buy approx. L281–436\ Severity: High The native marketplace enforces an IsClaimed guard in Claim market.go:752, CancelOrder market.go:1125, and orderEscrowAmount market.go:251, but not in Buy. Marketplace escrow is virtual: the market KApp account never...

CVE-2026-86065

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-2026-86064

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-2026-82405

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-2026-82406

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-2026-82407

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...

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...

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 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-2026-85647

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...