ChainBleedv0.1 · open intel
← back to feed·BSCACCESS-CONTROL2026-04-03 · 2mo ago
Incident · SLOWMIST

EIP-7702 Victim

Contract Vulnerability
Estimated loss
$17.2K
VERDICT —UNRATED
Verdict pending. Auto-ingested incidents are reviewed before a public verdict is rendered.
▰ METHOD
ACCESS CONTROL
ACCESS-CONTROLBYTECODE CATCHABLEAI SCANNABLE
Root cause

Root-cause analysis not yet published. The incident description below contains all currently available signal — review the attack transaction directly for definitive forensics.

Forensic narrative

A user EOA on BNB Chain (with EIP-7702 delegation) that had set delegated code via an EIP-7702 Type-4 transaction was drained for ~$17.2K. The delegated code included a pancakeV3SwapCallback() function without proper access control. The attacker directly called this callback with crafted calldata, forcing the victim account to transfer its tokens to an attacker-controlled address. The victim had enabled the delegation to support swap-related logic. Attack method (per SlowMist): Contract Vulnerability. Reported loss: $ 17,200.

Primary source
https://blocksec.com/blog/weekly-web3-security-incident-roundup-mar-30-apr-5-2026
Sourced from
slowmist
Technical record
chain
bsc
protocol
EIP-7702 Victim
bug_class
access-control
date_occurred
2026-04-03
loss_usd
$17,200
source_id
sm:eip-7702-victim::2026-04-03
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