OCTOBER 7, 2026
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Case File

CVE-2026-61604

CRITICAL · CVSS 9.3 EPSS 0.27% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-24 · Last synced 2026-10-06

CyberRota Analysis

AI-Generated

The x/bonds module of the ixo Blockchain is vulnerable, allowing attackers to move funds from victim addresses by exploiting a flaw in the DID verification process, which does not confirm the ownership of the resolved address. This critical vulnerability can lead to unauthorized fund transfers without requiring victim keys or signatures, impacting any account holding tokens that can be used in bonds. All node operators and validators must prioritize upgrading to version 8.0.0 to mitigate this risk, as the flaw can only be resolved by running the patched binary, with the bonds module currently disabled to prevent further exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit
GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-61604
Severity
CRITICAL
CVSS
9.3
EPSS
0.27%

Original NVD Description

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 logic; remediation requires the network to run the patched (v8.0.0) binary. The bonds module remains disabled in v8.0.0 and will only be re-enabled in a future release once the signer-authorization model has been corrected.