Varnish Cache before 7.6.2 and Varnish Enterprise before 6.0.13r10 allow client-side desync via HTTP/1 requests.
FEDORA-2025-b7f0c55e00 (varnish-7.6.1-5.fc42) has been pushed to the Fedora 42 stable repository. If problem still persists, please make note of it in this bug report.