High (7.5). EPSS 18% chance of exploitation in the next 30 days.
client_side_request.cc in Squid 3.x before 3.5.18 and 4.x before 4.0.10 allows remote servers to cause a denial of service (crash) via crafted Edge Side Includes (ESI) responses.
Severity
CVSS 3.0
7.5 high
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
18% chance of exploitation in the next 30 days; higher than 97% of CVEs (scores of 2026-10-31)