www/varnish7 -- Request Smuggling Attack
The Varnish Development Team reports: A client-side desync vulnerability can be triggered in Varnish Cache and Varnish Enterprise. This vulnerability can be triggered under specific circumstances involving malformed HTTP/1 requests. An attacker can abuse a flaw in Varnish's handling of chunked transfer encoding which allows certain malformed HTTP/1 requests to exploit improper framing of the message body to smuggle …
Affected versions
- varnish7 < 7.7.1
By system
1 still vulnerable, 1 fixed. Where VuXML applies (FreeBSD, DragonFly, FreeBSD's derivatives) a port is vulnerable while its version is in a range; pkgsrc says itself whether it lists a CVE of this advisory; OpenBSD and MidnightBSD keep no list this site reads, so their row is only an estimate: FreeBSD's ranges applied to upstream's version.
| System | Port | Version | State | Fixed |
|---|---|---|---|---|
| DragonFly | www/varnish7 | 7.6.2 | vulnerable since 2025-05-12 | |
| MidnightBSD | www/varnish7 | 7.7.3 | out of range, by version | |
| FreeBSD | www/varnish7 | 7.7.3_1 | fixed |