CVE-2023-46846

Squid: request/response smuggling in http/1.1 and icap

State: Published
Severity: 9.3 Critical
Published: Nov 3, 2023
Updated: Feb 25, 2026
Reserved: Oct 27, 2023

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	9.3 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N	redhat

Weaknesses

CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

Affected Products

Product	Versions
squid	2.6 to before 6.4Affected
Red Hat Enterprise Linux 7 Extended Lifecycle SupportRed Hat	7:3.5.20-17.el7_9.13 and laterNot affected
Red Hat Enterprise Linux 8Red Hat	8080020231030214932.63b34585 and laterNot affected
Red Hat Enterprise Linux 8Red Hat	8090020231030224841.a75119d5 and laterNot affected
Red Hat Enterprise Linux 8.1 Update Services for SAP SolutionsRed Hat	8010020231101141358.c27ad7f8 and laterNot affected
Red Hat Enterprise Linux 8.2 Advanced Update SupportRed Hat	8020020231101135052.4cda2c84 and laterNot affected
Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceRed Hat	8020020231101135052.4cda2c84 and laterNot affected
Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsRed Hat	8020020231101135052.4cda2c84 and laterNot affected
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat	8040020231101101624.522a0ee4 and laterNot affected
Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceRed Hat	8040020231101101624.522a0ee4 and laterNot affected
Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsRed Hat	8040020231101101624.522a0ee4 and laterNot affected
Red Hat Enterprise Linux 8.6 Extended Update SupportRed Hat	8060020231031165747.ad008a3a and laterNot affected
Red Hat Enterprise Linux 9Red Hat	7:5.5-5.el9_2.1 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	7:5.5-6.el9_3.1 and laterNot affected
Red Hat Enterprise Linux 9.0 Extended Update SupportRed Hat	7:5.2-1.el9_0.3 and laterNot affected
Red Hat Enterprise Linux 6Red Hat
Red Hat Enterprise Linux 6Red Hat

References

RHSA-2023:6266vendor-advisory
RHSA-2023:6267vendor-advisory
RHSA-2023:6268vendor-advisory
RHSA-2023:6748vendor-advisory
RHSA-2023:6801vendor-advisory
RHSA-2023:6803vendor-advisory
RHSA-2023:6804vendor-advisory
RHSA-2023:6810vendor-advisory
RHSA-2023:7213vendor-advisory
RHSA-2024:11049vendor-advisory
https://access.redhat.com/security/cve/CVE-2023-46846vdb-entry
RHBZ#2245910issue-tracking
https://github.com/squid-cache/squid/security/advisories/GHSA-j83v-w3p4-5cqh
https://lists.debian.org/debian-lts-announce/2024/01/msg00003.html
https://lists.debian.org/debian-lts-announce/2024/01/msg00008.html
https://security.netapp.com/advisory/ntap-20231130-0002/

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