Vulnerability Intelligence Report
Squid: request/response smuggling in http/1.1 and icap
CVE-2023-46846
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.
No Active Exploit Signals
CVSS Base Score
9.3
CRITICAL
Exploitability:3.9
Impact Score:4.8
EPSS Probability:5.25%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-444 ↗Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| 2.6 < 6.4 (affected) | ||
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | 7:3.5.20-17.el7_9.13 < * (unaffected) |
| Red Hat | Red Hat Enterprise Linux 8 | 8080020231030214932.63b34585 < * (unaffected) |
| Red Hat | Red Hat Enterprise Linux 8 | 8090020231030224841.a75119d5 < * (unaffected) |
| Red Hat | Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions | 8010020231101141358.c27ad7f8 < * (unaffected) |
| Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support | 8020020231101135052.4cda2c84 < * (unaffected) |
| Red Hat | Red Hat Enterprise Linux 8.2 Telecommunications Update Service | 8020020231101135052.4cda2c84 < * (unaffected) |
| Red Hat | Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions | 8020020231101135052.4cda2c84 < * (unaffected) |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | 8040020231101101624.522a0ee4 < * (unaffected) |
| Red Hat | Red Hat Enterprise Linux 8.4 Telecommunications Update Service | 8040020231101101624.522a0ee4 < * (unaffected) |
| Red Hat | Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | 8040020231101101624.522a0ee4 < * (unaffected) |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support | 8060020231031165747.ad008a3a < * (unaffected) |
| Red Hat | Red Hat Enterprise Linux 9 | 7:5.5-5.el9_2.1 < * (unaffected) |
| Red Hat | Red Hat Enterprise Linux 9 | 7:5.5-6.el9_3.1 < * (unaffected) |
| Red Hat | Red Hat Enterprise Linux 9.0 Extended Update Support | 7:5.2-1.el9_0.3 < * (unaffected) |
| Red Hat | Red Hat Enterprise Linux 6 | all |
| Red Hat | Red Hat Enterprise Linux 6 | all |
Threat Intelligence Signals
EPSS Score
5.255%
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Red Hat, Inc. · Vendor · USA |
| Reserved | 2023-10-27T08:36:38 |
| Published | 2023-11-03T07:33:16 |
| Patch Date | 2023-10-19 |
| Last Updated | 2026-02-25T18:19:15 |
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