Security Advisory

CVE-2026-42545

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-05-12 21:51:47

Last updated 2026-05-14 12:35:27

Assigner GitHub_M

CVSS score 5.9

State PUBLISHED

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.

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