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ixo Blockchain x/bonds DID-resolved payer drain + x/entity ICA authorization bypass

Type: advisorySource: Official CVE ListRisk context updated1 source record

The ixo Blockchain is a Layer 1 blockchain that runs on both Testnet and Mainnet. Prior to version 8.0.0, the x/bonds module moved funds from an address that was resolved from a DID verification method, without verifying that the resolved address belonged to the transaction signer. Affected handlers included MsgMakeOutcomePayment, MsgBuy, MsgSell, MsgSwap, and MsgWithdrawShare, as well as the batch order processor. Because any account may list an arbitrary blockchainAccountID as a verification method on a DID it controls (without the consent of that address's owner), an attacker could register victims' addresses as verification methods on their own DID and then move the victims' balances into a bond the attacker controlled — later withdrawing and bridging the proceeds off-chain. This was exploited on ixo mainnet (ixo-5) on 2026-06-20. The attack required no victim keys, signatures, or system compromise — any account holding a balance in a token a bond could use was at risk. This was fixed in v8.0.0, delivered via the on-chain v8 software-upgrade. The x/bonds module is disabled: every bonds message is rejected on all routes (top-level, authz, CosmWasm, and ICA), and the bonds batch EndBlocker is a no-op so no further reserve movements can occur. All node operators and validators must upgrade to v8.0.0. The flaw is in chain state-machine logic and can only be remediated by running the patched binary. There is no application-level workaround. The vulnerability is in consensus lo

Announced Source revision 2
Original source ↗
CVE context updated. The publisher announcement is unchanged.

CVE-2026-61604

Primary source · Revision 2

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-61604

ixo-blockchain

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "ixofoundation",
    "product": "ixo-blockchain",
    "versions": [
      {
        "status": "affected",
        "version": "< 8.0.0"
      }
    ]
  }
]
Related CVEs
CVE-2026-61604

Source reference: /cveMetadata/cveId

Publisher severity

critical

Source reference: /containers/cna/metrics

Linked CVE context

These ratings describe the referenced vulnerabilities and products. They are not a severity rating for every application using this dependency.

CVE-2026-61604 · Critical

github.com/ixofoundation/ixo-blockchain/v8, github.com/ixofoundation/ixo-blockchain/v7, github.com/ixofoundation/ixo-blockchain/v6, github.com/ixofoundation/ixo-blockchain/v5, github.com/ixofoundation/ixo-blockchain/v4, github.com/ixofoundation/ixo-blockchain/v3, github.com/ixofoundation/ixo-blockchain

Event
#63883 · Revision 2
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