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0xCERT Security Advisory 0xCERT-2026-0154
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Advisory-ID:  0xCERT-2026-0154
Severity:     Medium
Published:    2026-10-06T00:00:00.000Z
Updated:      2026-10-08T02:24:28.052Z
Chains:       Ethereum
URL:          https://www.0xcert.com/advisory/0xCERT-2026-0154

Title: MakerDAO ETH-A Liquidation Keeper Bot exploit — $538k lost on Ethereum

Summary
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MakerDAO ETH-A Liquidation Keeper Bot lost an estimated $538k on Ethereum (improper access control), according to the DeFiLlama hacks database. Users and integrators should review exposure and follow the project's official channels.

Details
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Summary
MakerDAO ETH-A Liquidation Keeper Bot lost an estimated $538k on Ethereum (improper access control), according to the DeFiLlama hacks database. Users and integrators should review exposure and follow the project's official channels.

Incident
- - Protocol: MakerDAO ETH-A Liquidation Keeper Bot
- - Date (UTC): 2026-10-06
- - Estimated loss: $538k
- - Chain(s): Ethereum
- - Technique: Improper Access Control
- - Classification: Access Control
- - Target: DeFi Protocol

Recommended actions
- - Revoke token approvals granted to MakerDAO ETH-A Liquidation Keeper Bot contracts until the project confirms they are safe
- - Integrators: pause or delist affected assets and monitor for attacker fund movements
- - Beware of follow-on phishing: ignore unofficial "refund", "recovery", or "claim" links and DMs; use the project's verified channels only

Source & attribution
This 0xCERT advisory relays an incident recorded in the DeFiLlama hacks database (https://defillama.com/hacks). Figures are preliminary estimates and may be revised; refer to the project's own post-mortem for the authoritative record. Report additional details to 0xCERT at https://www.0xcert.com/report.

References
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- - https://defillama.com/hacks

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