1inch - Web-logo

1inch - Web

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The 1inch dApp is the No. 1 DeFi aggregator, offering access to the deepest liquidity and the best token swap rates on various DEXes. Its unique features include partial fill and the ability to find the best swap paths across multiple liquidity sources.

Maximum Bounty
$50,000
Live Since
11 June 2026
Last Updated
15 July 2026
  • Triaged by Immunefi

  • PoC Required

  • KYC required

Select the category you'd like to explore

Assets in Scope

Target
Name
1inch Web - Homepage
Added on
11 June 2026
Target
Name
1inch Web - Blog Page
Added on
11 June 2026
Target
Name
1inch Web - Network Homepage
Added on
11 June 2026

Impacts in Scope

Severity
Critical
Title

Server-Side Request Forgery (SSRF) leading to access to internal services, cloud metadata endpoints, or sensitive internal resources

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 and/modifying authenticated actions (with or without blockchain state interaction) on behalf of other users without any interaction by that user, such as:

  • Changing registration information
  • Commenting
  • Voting
  • Making trades
  • Withdrawals, etc.
Severity
Critical
Title

Subdomain takeover with already-connected wallet interaction

Severity
Critical
Title

Direct theft of user funds

Severity
Critical
Title

Malicious interactions with an already-connected wallet, such as:

  • Modifying transaction arguments or parameters
  • Substituting contract addresses
  • Submitting malicious transactions
Severity
Critical
Title

Injection of malicious HTML or XSS through metadata

Severity
Critical
Title

Supply chain compromise leading to execution of malicious code in the production application (e.g., compromised dependencies, build pipeline injection)

Severity
High
Title

Injecting/modifying the static content on the target application without JavaScript (persistent), such as:

  • HTML injection without JavaScript
  • Replacing existing text with arbitrary text
  • Arbitrary file uploads, etc.
Severity
High
Title

Changing sensitive details of other users (including modifying browser local storage) without already-connected wallet interaction and with up to one click of user interaction, such as:

  • Email
  • Password of the victim etc.

Out of scope

Program's Out of Scope information

These impacts are out of scope for this bug bounty program.

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 (governance, strategist) except in such cases where the contracts are intended to have no privileged access to functions that make the attack possible
  • 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

Websites and Apps

  • 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
  • Clickjacking and tapjacking attacks without demonstration of a meaningful state-modifying impact
  • OPTIONS/TRACE HTTP method enabled
  • Open redirects (unless a serious impact is demonstrated)
  • Host header issues without PoC
  • Reflected file download (RFD)
  • Mixed HTTP/HTTPS content

Prohibited Activities:

  • Any testing with pricing oracles or third-party smart contracts
  • Attempting phishing or other social engineering attacks against our employees and/or customers
  • Any testing with third-party systems and applications (e.g. browser extensions) as well as websites (e.g. SSO providers, advertising networks)
  • Any denial of service attacks that are executed against project assets
  • Automated testing of services that generates significant amounts of traffic
  • Public disclosure of an unpatched vulnerability in an embargoed bounty
  • Accessing or modifying data belonging to other users
  • Submitting AI-generated reports
  • Spamming forms or account creation flows (even with low volume)