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CVE-2026-42545

Granian: DoS via WSGI response header panic PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
emmett-framework / granianaffected >= 0.2.0, < 2.7.4

CWE

CWE-248, CWE-755

References

ADP enrichment

CISA-ADP

No English description supplied.