CVE-2025-47905

5.4 mediumEPSS 0.4%

Medium (5.4). EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

5.4 medium

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 30% of CVEs (scores of 2026-10-31)
CWE: CWE-444
Published: 2025-05-13
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

https://varnish-cache.org/security/VSV00016.html
http://www.openwall.com/lists/oss-security/2025/05/15/2
https://lists.debian.org/debian-lts-announce/2025/05/msg00040.html

Check your stack JSON