Security context
What an agent needs to avoid regressing past fixes and find the next vuln in this repo.
0xsequence/erc20-meta-token
master @ a3670f1
2
Fixes
0
CVEs
HIGH
Peak severity
Highlights
Auth Bypass: 2 prior fixes. Scrutinize any change in this area.
SignatureValidator.sol: most-fixed (2 issues). Treat as high-risk during review.
2 high-severity fixes in this history; regressions here are high-impact.
Recurring patterns
The bug types that recur here, drawn from past fixes, not open vulnerabilities.
Auth Bypass: Insecure handling of the ecrecover precompile return value can allow an invalid signature to resolve to the zero address (0x0). If the codebase compares this output to an uninitialized or empty signer address, it leads to an authentication bypass.
Auth Bypass: Incorrect byte offset calculations during the extraction of r, s, and v signature components can lead to invalid or malformed signatures being processed incorrectly, potentially permitting signature malleability or authentication bypasses.