Hack history / 2021 / Hack or exploit
Solend
Hack or exploit on Aug 19, 2021 · Improper Access Control
SOURCES AGREE ON DATE AND LOSS · 2 SOURCES
Lost
$16K
dollars at the time
Returned
none listed
as the sources state it
Rank
#2,182
among thefts by dollars lost
What happened
On August 19, 2021 at 12:40 GMT, Solend's UpdateReserveConfig() admin function was exploited when an attacker bypassed authorization checks by invoking the function with the admin's public key without requiring a valid signature. The attacker attempted to make lending accounts liquidatable, resulting in $16K in liquidations that were fully compensated by the liquidator.
Details
- Date
- Aug 19, 2021
- Kind
- Hack or exploit
- Method
- Improper Access Control
- How in
- Smart contract bug
- Target
- DeFi protocol
- Chains
- Solana
After the theft
- Victims reimbursed
- yes, amount not stated
“The attacker attempted to make lending accounts liquidatable, resulting in $16K in liquidations that were fully compensated by the liquidator.” (DefiLlama)
Reported by
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Cite this page
SwanBluechip, "Solend hack, Aug 19, 2021: $16K lost", Crypto hack history, https://swan-hack-tracker.pages.dev/history/i/htbbcc82ddbd/ (data as of 2026-10-31).