| Name | CVE-2025-47905 |
| Description | Varnish Cache before 7.6.3 and 7.7 before 7.7.1, and Varnish Enterprise before 6.0.13r14, allow client-side desync via HTTP/1 requests, because the product incorrectly permits CRLF to be skipped to delimit chunk boundaries. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-5918-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| varnish (PTS) | bullseye | 6.5.1-1+deb11u3 | vulnerable |
| bullseye (security) | 6.5.1-1+deb11u4 | vulnerable | |
| bookworm | 7.1.1-1.1 | vulnerable | |
| bookworm (security) | 7.1.1-2+deb12u1 | fixed | |
| trixie | 7.7.0-1 | vulnerable | |
| sid | 7.7.0-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| varnish | source | bookworm | 7.1.1-2+deb12u1 | DSA-5918-1 | ||
| varnish | source | (unstable) | 7.7.0-2 |
https://varnish-cache.org/security/VSV00016.html
https://github.com/varnishcache/varnish-cache/commit/b5f1faba6e8d9848cfe0cba566986e7e5cc5f65b (varnish-7.7.1)
https://github.com/varnishcache/varnish-cache/commit/13904252859cf9848db5999b08c42d83a03ed812 (varnish-7.7.1)
https://github.com/varnishcache/varnish-cache/commit/3d9a9abff1c6734feea9d48d5852ccad7e7d0a42 (varnish-7.7.1)
https://github.com/varnishcache/varnish-cache/commit/00cb14931a53efafbdfec9843453fb1347bc9f59 (varnish-7.7.1)