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CVE PROGRAM SOURCE RECORD5.9 Medium

CVE-2026-42545

Granian: DoS via WSGI response header panic

Description

Granian is a Rust HTTP server for Python applications. From 0.2.0 to 2.7.4, Granian aborts a worker process if a WSGI application returns an invalid HTTP response header name or value. The WSGI response conversion path uses .unwrap() on both the header name and header value constructors, so malformed output from the application becomes a process abort instead of a handled error. This vulnerability is fixed in 2.7.4.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

emmett-framework granian

  • >= 0.2.0, < 2.7.4affected

References