Security context

What an agent needs to avoid regressing past fixes and find the next vuln in this repo.

carrierwaveuploader/carrierwave

              master @ b5f0abe
            

Fixes

CVEs

HIGH

Peak severity

50.0%

Coverage

Highlights

Auth Bypass: 2 prior fixes. Scrutinize any change in this area.

CarrierWave::SanitizedFile: most-fixed (2 issues). Treat as high-risk during review.

5 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.

Unrestricted Upload of File with Dangerous Type: Attackers can bypass the content type allowlist by appending parameters, providing multiple comma-separated types, or supplying deceptive client headers. Securing this requires robust server-side sniffing (e.g., Marcel) instead of trusting client input.

Auth Bypass: Regular expression matching on denylists or allowlists without strict anchoring and metacharacter escaping allows attackers to bypass upload restrictions, enabling the storage of dangerous files (e.g., SVGs with executable JavaScript).

Command Injection: Untrusted input in uploaded filenames can lead to arbitrary command execution when processed by shell-dependent commands during image manipulation.