CVE-2023-46846Squid: request/response smuggling in http/1.1 and icap
- 9.3CriticalCVSS base score
- 7.2%Exploitation in 30 daysEPSS · top 5.6% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By redhat
- 7 days later
· 7 days later
Published
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.1 | Critical9.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N |
| NVDNVD · Modified | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
- EPSS (exploitation in 30 days)
- 7.2% · top 5.6% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.3.
Affected products
squid
- affected 2.6 – < 6.4
Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle Support
- unaffected 7:3.5.20-17.el7_9.13 – < *
Red Hat · Red Hat Enterprise Linux 8
- unaffected 8080020231030214932.63b34585 – < *
Red Hat · Red Hat Enterprise Linux 8
- unaffected 8090020231030224841.a75119d5 – < *
Red Hat · Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions
- unaffected 8010020231101141358.c27ad7f8 – < *
Red Hat · Red Hat Enterprise Linux 8.2 Advanced Update Support
- unaffected 8020020231101135052.4cda2c84 – < *
Red Hat · Red Hat Enterprise Linux 8.2 Telecommunications Update Service
- unaffected 8020020231101135052.4cda2c84 – < *
Red Hat · Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions
- unaffected 8020020231101135052.4cda2c84 – < *
Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
- unaffected 8040020231101101624.522a0ee4 – < *
Red Hat · Red Hat Enterprise Linux 8.4 Telecommunications Update Service
- unaffected 8040020231101101624.522a0ee4 – < *
Red Hat · Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
- unaffected 8040020231101101624.522a0ee4 – < *
Red Hat · Red Hat Enterprise Linux 8.6 Extended Update Support
- unaffected 8060020231031165747.ad008a3a – < *
Red Hat · Red Hat Enterprise Linux 9
- unaffected 7:5.5-5.el9_2.1 – < *
Red Hat · Red Hat Enterprise Linux 9
- unaffected 7:5.5-6.el9_3.1 – < *
Red Hat · Red Hat Enterprise Linux 9.0 Extended Update Support
- unaffected 7:5.2-1.el9_0.3 – < *
Red Hat · Red Hat Enterprise Linux 6
All versions: affected
Red Hat · Red Hat Enterprise Linux 6
All versions: affected
References
References16
- RHSA-2023:6266 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2023:6267 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2023:6268 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2023:6748 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2023:6801 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2023:6803 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2023:6804 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2023:6810 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2023:7213 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2024:11049 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2023-46846 (opens in a new tab)vdb-entryx_refsource_REDHATx_transferred
- RHBZ#2245910 (opens in a new tab)issue-trackingx_refsource_REDHATx_transferred
- https://github.com/squid-cache/squid/security/advisories/GHSA-j83v-w3p4-5cqh (opens in a new tab)x_transferred
- https://lists.debian.org/debian-lts-announce/2024/01/msg00003.html (opens in a new tab)x_transferred
- https://lists.debian.org/debian-lts-announce/2024/01/msg00008.html (opens in a new tab)x_transferred
- https://security.netapp.com/advisory/ntap-20231130-0002/ (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2023-51012 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2023-46846)Record last updated .