cve.bz

CVE-2016-4554

8.6 highEPSS 39%

mime_header.cc in Squid before 3.5.18 allows remote attackers to bypass intended same-origin restrictions and possibly conduct cache-poisoning attacks via a crafted HTTP Host header, aka a "header smuggling" issue.

Severity

CVSS 3.0

8.6 high
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
EPSS
39% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)
CWE
CWE-345
Published
Modified
Record from
the NVD, synced

Affected

References

Check your stackJSON