Security context

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

microsoft/cpprestsdk

              master @ f74bdc4
            

Fixes

CVEs

HIGH

Peak severity

38.5%

Coverage

Highlights

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

Release/src/http/client/http_client_winhttp.cpp: most-fixed (3 issues). Treat as high-risk during review.

11 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.

Insecure TLS: Platform-specific certificate chain and hostname verification is split across Windows, OS X, iOS, and Android. Failure to consistently implement native checks has historically allowed TLS Verification Bypass.

Use After Free: Asynchronous callbacks in network clients are prone to race conditions and Use-After-Free if context lifetimes are managed via raw pointers instead of shared/weak pointers or if heap-allocated contexts outlive their streams.

Memory Corruption: Cryptographic operations are susceptible to stack buffer overflows when using legacy size constants (e.g. HMAC_MAX_MD_CBLOCK) instead of modern API limits like EVP_MAX_MD_SIZE.