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Vesper Finance

avoid.net/vesper-finance→63/100·72% conf.
[✓ FACT-CHECKED]· reviewed once · last review 2 Nov 2026[src:defillama]

Last changed 2026-11-02 · Fact-check review — Fact-check review (verdict: revise): the reviewer checked the page's claims against its sources; the trust score was recalculated from the page's findings, 62 → 63. Version history →

Why this score
Every page starts at65
Incidents it suffered (e.g. hacks)-6.4
Problems around it, caused by others-4
Long-running+8
Sum63
  • 1 section set aside: the claims did not hold up in a fact-check, pending correction.

Score: 63/100 (kept between 0 and 100)

How scoring works →

Page reliability: Fact-checked 2026-11-02 · 2 of 6 claims confirmed · 1 need better sources · 3 disputed

anchored·2LVoxx…Feow

Summary

Vesper Finance is an Ethereum-based DeFi yield aggregator co-founded by former Bitcoin Core developer Jeff Garzik that launched in early 2021 and briefly exceeded $1 billion in TVL. The protocol suffered a confirmed $3.37 million oracle manipulation exploit on Rari Fuse Pool #23 in November 2021, and was indirectly exposed to a May 2024 Sonne Finance exploit that required treasury remediation. Vesper remains operational as of 2025 with approximately $48–55 million TVL, though its native VSP token has lost over 99% of its all-time-high value.

Connected Entities

8 entities · 60 linked investigations
Organizations
□Polygon65□Ethereum□Rari Capital□Optimism
Protocols
⌂Sonne Finance⌂Uniswap⌂Vesper Finance
Tokens
♦Bitcoin
Relationships
  • Vesper Finance→mentioned with→Rari Capital(85%)
  • Vesper Finance→mentioned with→Polygon(60%)
  • Vesper Finance→mentioned with→Optimism(70%)
  • Vesper Finance→mentioned with→Bitcoin(70%)
  • Vesper Finance→mentioned with→Uniswap(80%)
  • Vesper Finance→mentioned with→Ethereum(70%)
  • Ethereum→mentioned with→Bitcoin(60%)
  • Optimism→mentioned with→Ethereum(80%)
  • Uniswap→mentioned with→Bitcoin(60%)
  • Uniswap→mentioned with→Ethereum(80%)
  • + 6 more
Have evidence about Vesper Finance?

Timeline(9 events)

February 2021

Vesper Finance launches beta on Ethereum, co-founded by Jeff Garzik, Matthew Roszak, and Jordan Kruger.

March 2021

Vesper Finance surpasses $1 billion in TVL within approximately six weeks of launch.

2 November 2021

Oracle manipulation attack on Rari Fuse Pool #23 (Vesper Lend Beta) results in $3.37 million stolen. Attacker used Tornado Cash and Uniswap v3 TWAP manipulation. Attacker address: 0xa3f447feb0b2bddc50a44ccd6f412a5f98619264.

16 March 2023

Dedaub team discovers rebase vulnerability in Vesper's yield rebalance mechanism. Vulnerability is disclosed responsibly, patched before any exploitation, and a bug bounty is paid.

2023

Vesper joins Immunefi with a $200,000 maximum bug bounty program for smart contract vulnerabilities.

14 May 2024

Sonne Finance exploit (~$20 million total) indirectly affects three Vesper Optimism pools (OP, USDC, wstETH), restricting withdrawals.

21 May 2024

Vesper governance approves $156,833 treasury allocation to remediate Sonne-related pool debt; all Optimism pools restored to operation.

August 2024

Vesper DAO votes to restart VSP buyback mechanisms and transitions from vVSP to locked VSP tokenomics model.

November 2025

Vesper treasury reaches approximately $460,649; protocol reports TVL near $55 million, highest since 2022.

Provenance & Audit Trail

Decision Log

  • #5rescore+1Recorded on Solana ✓11/2/2026, 10:21:45 AM
    slot 464459960 · hash 6bcF31RTb1MgtRYgCYu7wZpRX18r84AYwjFqKpa67Vnb
  • #4review reviseRecorded on Solana ✓11/2/2026, 10:21:44 AM
    slot 464459954 · hash EhomAn59dSV11s5ccus1aGAmd8asbo8iCjPFTwZ4NHed
  • #3reviewRecorded on Solana ✓11/2/2026, 10:21:44 AM
    slot 464459949 · hash 8hH9dEGds7vGZQgqxacwjMMNZZUrGYbTrhbDPJhmDwie
  • #2rescore+24Recorded on Solana ✓10/10/2026, 6:47:34 PM
    slot 455367469 · hash 3YFsqyqePFtiMAMSWngZci4eQxb9S4QEAV6v5RHpKgjY
  • #1publishRecorded on Solana ✓5/28/2026, 5:44:13 PM
    slot 422768068 · hash ACcCVcgHg6YaJussvdyRFAggRPuYAVHXHgmLfvcLpd78

This investigation is cryptographically anchored to the Solana blockchain (5 decisions). 13 of 19 cited source URLs have an Internet Archive snapshot.

Fact-checked 2026-11-026 claims checked3 corrections pending0 applied⛓ anchoredSee findings →

model: claude-sonnet-4-6

generated: 5/4/2026, 2:54:53 AM

last updated: 11/2/2026, 10:21:45 AM

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