stake.link-logo

stake.link

|

stake.link is the first of its kind delegated liquid staking protocol for Chainlink Staking. Powered and governed by the protocol token SDL, with DeFi interoperability enabled by the liquid staking receipt token stLINK, the stake.link protocol enables anyone to provide LINK collateral to and receive a share of rewards from the most reliable and performant Chainlink node operators.

Defi
Liquid Staking
Maximum Bounty
$100,000
Live Since
14 May 2025
Last Updated
05 August 2025
  • Triaged by Immunefi

  • PoC Required

  • KYC required

Select the category you'd like to explore

Assets in Scope

Target
Type
Websites and Applications - The POST /v1/consent endpoint is out of scope.
Added on
5 August 2025
Target
Type
Smart Contract - stLINK Reward Pool
Added on
14 May 2025
Target
Type
Smart Contract - wstLINK
Added on
14 May 2025
Target
Type
Smart Contract - Operator VCS
Added on
14 May 2025
Target
Type
Smart Contract - Community VCS
Added on
14 May 2025
Target
Type
Smart Contract - LINK Priority Pool
Added on
14 May 2025
Target
Type
Smart Contract - LINK Fund Flow Controller
Added on
14 May 2025
Target
Type
Smart Contract - LINK Withdrawal Pool
Added on
14 May 2025
Target
Type
Smart Contract - wstLINK
Added on
14 May 2025
Target
Type
Smart Contract - SDL
Added on
14 May 2025
Target
Type
Smart Contract - BurnMint
Added on
14 May 2025
Target
Type
Smart Contract - LINK Staking Pool
Added on
14 May 2025

Impacts in Scope

Severity
Critical
Title

Direct theft of any user funds, whether at-rest or in-motion, other than unclaimed yield

Severity
Critical
Title

Direct theft of any user NFTs, whether at-rest or in-motion, other than unclaimed royalties

Severity
Critical
Title

Permanent freezing of funds

Severity
Critical
Title

Permanent freezing of NFTs

Severity
Critical
Title

Unauthorized minting of NFTs

Severity
Critical
Title

Predictable or manipulable RNG that results in abuse of the principal or NFT

Severity
Critical
Title

Unintended alteration of what the NFT represents (e.g. token URI, payload, artistic content)

Severity
Critical
Title

Protocol insolvency

Severity
Critical
Title

Execute arbitrary system commands

Severity
Critical
Title

Retrieve sensitive data/files from a running server, such as:

  • /etc/shadow
  • database passwords
  • blockchain keys (this does not include non-sensitive environment variables, open source code, or usernames)
Severity
Critical
Title

Taking down the application/website

Severity
Critical
Title

Taking down the NFT URI

Out of scope

Default Out of Scope and rules

Web & App specific

  • Theoretical impacts without any proof or demonstration
  • Impacts involving attacks requiring physical access to the victim device
  • Impacts involving attacks requiring access to the local network of the victim
  • Reflected plain text injection (e.g. url parameters, path, etc.)
    • This does not exclude reflected HTML injection with or without JavaScript
    • This does not exclude persistent plain text injection
  • Any impacts involving self-XSS
  • Captcha bypass using OCR without impact demonstration
  • CSRF with no state modifying security impact (e.g. logout CSRF)
  • Impacts related to missing HTTP Security Headers (such as X-FRAME-OPTIONS) or cookie security flags (such as “httponly”) without demonstration of impact
  • Server-side non-confidential information disclosure, such as IPs, server names, and most stack traces
  • Impacts causing only the enumeration or confirmation of the existence of users or tenants
  • Impacts caused by vulnerabilities requiring un-prompted, in-app user actions that are not part of the normal app workflows
  • Lack of SSL/TLS best practices
  • Impacts that only require DDoS
  • UX and UI impacts that do not materially disrupt use of the platform
  • Impacts primarily caused by browser/plugin defects
  • Leakage of non sensitive API keys (e.g. Etherscan, Infura, Alchemy, etc.)
  • Any vulnerability exploit requiring browser bugs for exploitation (e.g. CSP bypass)
  • SPF/DMARC misconfigured records)
  • Missing HTTP Headers without demonstrated impact
  • Automated scanner reports without demonstrated impact
  • UI/UX best practice recommendations
  • Non-future-proof NFT rendering

All categories

  • Impacts requiring attacks that the reporter has already exploited themselves, leading to damage
  • Impacts caused by attacks requiring access to leaked keys/credentials
  • Impacts caused by attacks requiring access to privileged addresses (including, but not limited to: governance and strategist contracts) without additional modifications to the privileges attributed
  • Impacts relying on attacks involving the depegging of an external stablecoin where the attacker does not directly cause the depegging due to a bug in code
  • Mentions of secrets, access tokens, API keys, private keys, etc. in Github will be considered out of scope without proof that they are in-use in production
  • Best practice recommendations
  • Feature requests
  • Impacts on test files and configuration files unless stated otherwise in the bug bounty program
  • Impacts requiring phishing or other social engineering attacks against project's employees and/or customers