Is CVE-2023-46846 being actively exploited?

CVE-2023-46846 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2023-46846?

CVE-2023-46846 has a CVSS 3.1 base score of 9.3 (CRITICAL).

CVE-2023-46846

CRITICAL · CVSS 9.3EPSS 6.2%EU EUVD

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.

Key facts

CVSS score: 9.3 (v3.1)
Severity: CRITICAL
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
Weakness (CWE): CWE-444
EPSS score: 6.2% (93th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2023-51012)
Published: November 3, 2023
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2023-51012 in the EU Vulnerability Database. Last updated in EUVD on February 25, 2026.

View on the EU Vulnerability Database

Affected products

redhat / enterprise linux
redhat / enterprise linux
redhat / enterprise linux eus
redhat / enterprise linux eus
redhat / enterprise linux eus
redhat / enterprise linux eus
redhat / enterprise linux for arm 64
redhat / enterprise linux for ibm z systems
redhat / enterprise linux for power little endian
redhat / enterprise linux server aus
redhat / enterprise linux server aus
redhat / enterprise linux server aus
redhat / enterprise linux server aus
redhat / enterprise linux server tus
redhat / enterprise linux server tus
redhat / enterprise linux server tus
redhat / enterprise linux server tus
redhat / enterprise linux server tus
squid-cache / squid

Certified products that may be affected

33 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Red Hat Enterprise Linux 8 NSS Cryptographic Module - Red Hat, Inc. - FIPS 140 5513 - active
Red Hat Enterprise Linux 8 Kernel Cryptographic API - Red Hat, LLC - FIPS 140 5461 - active
Red Hat Enterprise Linux 9 Kernel Cryptographic API - Red Hat, Inc. - FIPS 140 5445 - active
Red Hat Enterprise Linux 9 libgcrypt - Red Hat, Inc. - FIPS 140 5366 - active
Red Hat Enterprise Linux 8 Kernel Cryptographic API - Red Hat, Inc. - FIPS 140 5089 - active

See all 33 in the Security Certifications Explorer.

References

https://access.redhat.com/errata/RHSA-2023:6266(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2023:6267(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2023:6268(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2023:6748(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2023:6801(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2023:6803(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2023:6804(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2023:6810(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2023:7213(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2024:11049
https://access.redhat.com/security/cve/CVE-2023-46846(Third Party Advisory)
https://bugzilla.redhat.com/show_bug.cgi?id=2245910(Issue Tracking, Third Party Advisory)
https://github.com/squid-cache/squid/security/advisories/GHSA-j83v-w3p4-5cqh(Vendor Advisory)
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/

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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