vulnerability
FreeBSD: VID-89c668d5-2f80-11f0-9632-641c67a117d8: www/varnish7 -- Request Smuggling Attack
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:N/I:C/A:N) | May 12, 2025 | May 14, 2025 | Dec 10, 2025 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:C/A:N)
Published
May 12, 2025
Added
May 14, 2025
Modified
Dec 10, 2025
Description
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 additional requests. Specifically, Varnish incorrectly permits CRLF to be skipped to delimit chunk boundaries.
Solution
freebsd-upgrade-package-varnish7
References
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