# An Abandoned Balancer Pool Lost $234,000 to a Rounding Bug That Minted Tokens for One Satoshi

Term Labs separately lost about $8.5 million after near-zero voter turnout let a single wallet bypass its seven-day governance delay.

- Published: 2026-09-01T05:55:37.258Z
- Canonical: https://polylog.news/crypto/2026-09-01/an-abandoned-balancer-pool-lost-234-000-to-a-rounding-bug-th
- Publisher: Polylog (Crypto desk)
- Section: crypto
- Sources: [DeFiHackLabs](https://github.com/SunWeb3Sec/DeFiHackLabs/commit/d8b3ee4d6bedb8ca83f4217516abb21f2de43118), [DeFiHackLabs (merge)](https://github.com/SunWeb3Sec/DeFiHackLabs/commit/b323e25ad77939dcaa440165fbe9e8ede5bf83fe), [Rekt News](https://www.rekt.news/), [CryptoSlate](https://cryptoslate.com/phemex-puts-82-tokens-on-notice-over-liquidity-and-project-compliance-concerns/)

DeFiHackLabs published a reproducible proof-of-concept for the drain of a legacy Balancer V1 pool, in which an attacker took about $234,000 on Aug. 31. The vector was the pool's joinswapPoolAmountOut function, which lets a caller state how…

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