CVE-2023-46846: redhat enterprise_linux HTTP Request/Response Smuggling
CVSS: 9.3v3.1CriticalModified
AliasesALPINE-CVE-2023-46846RHSA-2024:11049UBUNTU-CVE-2023-46846DEBIAN-CVE-2023-46846
Published 03-11-2023Last modified 25-02-2026
Vulnerability summary
CVE-2023-46846 is a critical (CVSS 9.3) HTTP Request/Response Smuggling vulnerability in redhat enterprise_linux. EPSS estimates a 6.21% chance of exploitation in the next 30 days, higher than 93.4% of scored vulnerabilities.
CVSS score
9.3/10
010
Critical · v3.1 (CVE.org)EPSS score
6.21%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 17 · Related 5Timeline
- 03-11-2023PublishedVulnerability first disclosed.
- 25-02-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
6 scores · 6 sources · 1 versionCritical 9.3Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:NSources6 sources · 5.3–9.3
- OSV · AlpineEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NDiffers
- OSV · Red hatEcosystem advisory · calculated9.3CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
- OSV · UbuntuEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NDiffers
- OSV · DebianEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NDiffers
- NVDNIST5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NDiffers
EPSS trend
Probability
6.21%
Chance of exploitation in the next 30 days
Percentile
93%
Versus all other CVEs
30-day change
0.00 pp
From 6.21% on 18-09-2026
18-09-202618-10-2026
EPSS score6.21%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat11 products
- enterprise_linux8.0 | 9.0
- enterprise_linux_eus8.6 | 8.8 | 9.0 | 9.2
- enterprise_linux_for_arm_648.0_aarch64
- enterprise_linux_for_ibm_z_systems8.0_s390x
- enterprise_linux_for_power_little_endian8.0_ppc64le
Ubuntu2 products
- squid< 4.10-1ubuntu1.8 | < 5.7-0ubuntu0.22.04.2 | < 6.1-2ubuntu2
- squid3All versions (No fix recorded)
Alpine1 product
- squid≥ 2.6, < 6.4-r0
Debian1 product
- squid< 5.7-2+deb12u1 | < 6.5-1
Squid-cache1 product
- squid≥ 2.6, < 6.4
5 vendors · 16 products
References
25 linksShow all 25 references
- bugzilla.redhat.com/show_bug.cgi?id=2245910Issue TrackingX Refsource REDHATREPORTThird Party Advisory
- security.netapp.com/advisory/ntap-20231130-0002/X Transferred
