CVE-2023-46218

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Summary

CVECVE-2023-46218
StatePUBLISHED
Assignerhackerone
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-12-07 01:15:07 UTC
Updated2026-05-12 11:16:14 UTC
DescriptionThis flaw allows a malicious HTTP server to set "super cookies" in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains. It could do this by exploiting a mixed case flaw in curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with `domain=co.UK` when the URL used a lower case hostname `curl.co.uk`, even though `co.uk` is listed as a PSL domain.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS: 0.002130000 probability, percentile 0.436240000 (date 2026-05-12)

Problem Types: NVD-CWE-noinfo | CWE-178 | CWE-178 CWE-178 Improper Handling of Case Sensitivity

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
3.1ADPDECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 39 All All All
Application Haxx Curl All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Curl Curl affected 8.4.0 8.4.0 semver Not specified
CNA Curl Curl unaffected 7.46.0 7.46.0 semver Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens RUGGEDCOM ROX MX5000 affected V2.17.0 custom Not specified
ADP Siemens RUGGEDCOM ROX MX5000RE affected V2.17.0 custom Not specified
ADP Siemens RUGGEDCOM ROX RX1400 affected V2.17.0 custom Not specified
ADP Siemens RUGGEDCOM ROX RX1500 affected V2.17.0 custom Not specified
ADP Siemens RUGGEDCOM ROX RX1501 affected V2.17.0 custom Not specified
ADP Siemens RUGGEDCOM ROX RX1510 affected V2.17.0 custom Not specified
ADP Siemens RUGGEDCOM ROX RX1511 affected V2.17.0 custom Not specified
ADP Siemens RUGGEDCOM ROX RX1512 affected V2.17.0 custom Not specified
ADP Siemens RUGGEDCOM ROX RX1524 affected V2.17.0 custom Not specified
ADP Siemens RUGGEDCOM ROX RX1536 affected V2.17.0 custom Not specified
ADP Siemens RUGGEDCOM ROX RX5000 affected V2.17.0 custom Not specified
ADP Siemens SINEC NMS affected V3.0 SP1 custom Not specified

References

ReferenceSourceLinkTags
Debian -- Security Information -- DSA-5587-1 curl af854a3a-2127-422b-91ae-364da2661108 www.debian.org
cert-portal.siemens.com/productcert/html/ssa-082556.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
curl.se/docs/CVE-2023-46218.html af854a3a-2127-422b-91ae-364da2661108 curl.se Patch, Vendor Advisory
cert-portal.siemens.com/productcert/html/ssa-331112.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
[SECURITY] Fedora 38 Update: curl-8.0.1-6.fc38 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
hackerone.com/reports/2212193 af854a3a-2127-422b-91ae-364da2661108 hackerone.com Exploit, Issue Tracking, Patch, Third Party Advisory
[SECURITY] [DLA 3692-1] curl security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
cert-portal.siemens.com/productcert/html/ssa-202008.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
cert-portal.siemens.com/productcert/html/ssa-093430.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
CVE-2023-46218 curl Vulnerability in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com
[SECURITY] Fedora 39 Update: curl-8.2.1-4.fc39 - package-announce - Fedora Mailing-Lists af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Mailing List, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 161400 Oracle Enterprise Linux Security Update for curl (ELSA-2024-1129)
  • 161458 Oracle Enterprise Linux Security Update for curl (ELSA-2024-1601)
  • 199983 Ubuntu Security Notification for curl Vulnerability (USN-6535-1)
  • 200122 Ubuntu Security Notification for curl Vulnerability (USN-6641-1)
  • 242745 Red Hat Update for curl (RHSA-2024:0434)
  • 242756 Red Hat Update for curl (RHSA-2024:0452)
  • 242817 Red Hat Update for curl (RHSA-2024:0585)
  • 242849 Red Hat Update for curl (RHSA-2024:0428)
  • 243026 Red Hat Update for curl (RHSA-2024:1129)
  • 243077 Red Hat Update for JBoss Core Services (RHSA-2024:1316)
  • 243155 Red Hat Update for curl (RHSA-2024:1601)
  • 284810 Fedora Security Update for curl (FEDORA-2023-2121eca964)
  • 285105 Fedora Security Update for curl (FEDORA-2023-9de8973300)
  • 330168 IBM AIX Multiple Vulnerabilities due to curl (curl_advisory4)
  • 379413 BIG-IP cURL Multiple Vulnerabilities (K000138650)
  • 503683 Alpine Linux Security Update for curl
  • 505865 Alpine Linux Security Update for curl
  • 6000399 Debian Security Update for curl (DLA 3692-1)
  • 6000401 Debian Security Update for curl (DSA 5587-1)
  • 673340 EulerOS Security Update for curl (EulerOS-SA-2024-1310)
  • 673556 EulerOS Security Update for curl (EulerOS-SA-2024-1172)
  • 673648 EulerOS Security Update for curl (EulerOS-SA-2024-1102)
  • 673803 EulerOS Security Update for curl (EulerOS-SA-2024-1260)
  • 673830 EulerOS Security Update for curl (EulerOS-SA-2024-1332)
  • 673867 EulerOS Security Update for curl (EulerOS-SA-2024-1192)
  • 673901 EulerOS Security Update for curl (EulerOS-SA-2024-1117)
  • 755460 SUSE Enterprise Linux Security Update for curl (SUSE-SU-2023:4650-1)
  • 907726 Common Base Linux Mariner (CBL-Mariner) Security Update for mysql (32126-1)
  • 907736 Common Base Linux Mariner (CBL-Mariner) Security Update for curl (32099-1)
  • 941607 AlmaLinux Security Update for curl (ALSA-2024:1129)
  • 941637 AlmaLinux Security Update for curl (ALSA-2024:1601)
  • 961151 Rocky Linux Security Update for curl (RLSA-2024:1601)
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