CVE-2023-46846
Squid: request/response smuggling in http/1.1 and icap
CVSS Score
9.3
EPSS Score
0.0%
EPSS Percentile
0th
SQUID is vulnerable to HTTP request smuggling, caused by chunked decoder lenience, allows a remote attacker to perform Request/Response smuggling past firewall and frontend security systems.
| CWE | CWE-444 |
| Published | Nov 3, 2023 |
| Last Updated | Feb 25, 2026 |
Stay Ahead of the Next One
Get instant alerts for
Be the first to know when new critical vulnerabilities are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
Low
Availability
None
Affected Versions
Red Hat / Red Hat Enterprise Linux 7 Extended Lifecycle Support
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions
All versions affected Red Hat / Red Hat Enterprise Linux 8.2 Advanced Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 8.2 Telecommunications Update Service
All versions affected Red Hat / Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions
All versions affected Red Hat / Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 8.4 Telecommunications Update Service
All versions affected Red Hat / Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
All versions affected Red Hat / Red Hat Enterprise Linux 8.6 Extended Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 9.0 Extended Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Enterprise Linux 6
All versions affected References
access.redhat.com: https://access.redhat.com/errata/RHSA-2023:6266 access.redhat.com: https://access.redhat.com/errata/RHSA-2023:6267 access.redhat.com: https://access.redhat.com/errata/RHSA-2023:6268 access.redhat.com: https://access.redhat.com/errata/RHSA-2023:6748 access.redhat.com: https://access.redhat.com/errata/RHSA-2023:6801 access.redhat.com: https://access.redhat.com/errata/RHSA-2023:6803 access.redhat.com: https://access.redhat.com/errata/RHSA-2023:6804 access.redhat.com: https://access.redhat.com/errata/RHSA-2023:6810 access.redhat.com: https://access.redhat.com/errata/RHSA-2023:7213 access.redhat.com: https://access.redhat.com/errata/RHSA-2024:11049 access.redhat.com: https://access.redhat.com/security/cve/CVE-2023-46846 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2245910 github.com: https://github.com/squid-cache/squid/security/advisories/GHSA-j83v-w3p4-5cqh lists.debian.org: https://lists.debian.org/debian-lts-announce/2024/01/msg00003.html lists.debian.org: https://lists.debian.org/debian-lts-announce/2024/01/msg00008.html security.netapp.com: https://security.netapp.com/advisory/ntap-20231130-0002/