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klever-io

18 known vulnerabilities.

klever-io at a glance

Last 12 months
18
Critical · all time
2
Exploited · all time
0
Public exploit · all time
0
New vulnerabilities per month · last 12 months
0 5 10 December 2025: 0 vulnerabilities Dec 2025 January 2026: 0 vulnerabilities February 2026: 0 vulnerabilities March 2026: 0 vulnerabilities Mar April 2026: 0 vulnerabilities May 2026: 1 vulnerability June 2026: 0 vulnerabilities Jun July 2026: 1 vulnerability August 2026: 10 vulnerabilities, 2 critical September 2026: 6 vulnerabilities Sep October 2026: 0 vulnerabilities November 2026: 0 vulnerabilities
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18 results · Feed

  • High 8.7

    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 authent…

  • High 8.4

    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…

  • High 7.0

    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…

  • High 7.5

    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 SetRead…

  • High 8.6

    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 …

  • High 7.1

    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 …

  • High 8.7

    Klever-Go: SFT add-quantity `int64` overflow bypasses a finite per-nonce MaxSupply

    Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.19, Klever-Go allows a mint-role holder to bypass a finite per-nonce MaxSupply on the semi-fungible token add-quantity path. In core/kapp/systemAccount/systemAcount.go, SFTAddC…

  • High 8.7

    Klever-Go: Percentage-transfer royalty skips the source debit at exactly-100% splits

    Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.19, processPercentageRoyaltiesTransfer in core/kapp/accounts/accounts.go calls SubFromBalance after the split loop and after the royaltiesToPay <= 0 early return. computeSplitR…

  • Critical 9.6

    Klever-Go: Integer overflow in split-royalty validation enables unbounded minting of KLV (native token)

    Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.19, split-royalty fields decoded in core/kapp/builtInFunctions/utils.go can contain values greater than core.HundredPercent, and core/kapp/kda/create.go and core/kapp/kda/trigg…

  • Critical 9.6

    Klever-Go: Marketplace settlement mints KLV when referral % + royalty % exceed the bid (negative seller share silently skipped)

    Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.19, marketplace settlement in core/kapp/market/market.go reads MarketOrderData.ReferralPercentage from the listing while reading asset.Royalties.MarketPercentage live at purcha…

  • High 7.5

    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 …

  • High 7.5

    Klever-Go: Unbounded goroutine spawn on direct-message ingress enables peer-driven DoS

    Klever-Go is the Go implementation of the Klever blockchain protocol. In versions 1.7.14 through 1.7.17, the direct-message ingress handler spawns a new goroutine for every incoming direct message before the processor-level antiflood layer makes any admission…

  • High 7.5

    Klever-Go: Unauthenticated nil-pointer DoS in P2P transaction validation can halt the chain

    Klever-Go is the Go implementation of the Klever blockchain protocol. Versions 1.7.14 through 1.7.17 are vulnerable to a nil-pointer panic triggered by a protobuf Transaction whose embedded RawData sub-message is omitted. This omission causes RawData to decod…

  • Medium 5.9

    Klever-Go KVM: Throttler slot leak in trie account-data sync causes epoch bootstrap / state sync DoS

    Klever-Go is the Go implementation of the Klever blockchain protocol. In versions prior to 1.7.18, the account-data trie syncers are vulnerable to a resource-exhaustion flaw that leaks bounded throttler slots on error paths. In syncDataTrie() (in both userAcc…

  • High 7.5

    Klever-Go KVM: Hash-array amplification in P2P resolver request handling

    Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.18, the P2P resolver request handling logic is vulnerable to hash-array amplification. A connected peer can send a compressed RequestDataType_HashArrayType direct request that …

  • High 7.1

    Klever-Go: PubKeysBitmap padding bits bypass the BLS signature quorum

    Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, header signature verification counts the unused padding bits of the PubKeysBitmap toward the two-thirds validator quorum. These padding bits do not correspond to any valida…

  • Medium 6.3

    Klever-Go KVM read-only execution can commit contract delete and upgrade side effects

    Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.17, KVM exposes `ExecuteReadOnlyWithTypedArguments` as a read-only execution mechanism. The hook saves the previous read-only state, sets `runtime.SetReadOnly(true)`, executes …

  • High 8.6

    Klever-Go MultiDataInterceptor: remote OOM via crafted compressed P2P payload

    Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.17, a remote, unauthenticated denial-of-service vulnerability in Batch.Decompress (data/batch/batch.go) allows any peer that participates in a topic served by MultiDataIntercep…