CVE-2023-46218

This 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.
References
Link Resource
https://curl.se/docs/CVE-2023-46218.html Patch Vendor Advisory
https://hackerone.com/reports/2212193 Exploit Issue Tracking Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/12/msg00015.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3ZX3VW67N4ACRAPMV2QS2LVYGD7H2MVE/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UOGXU25FMMT2X6UUITQ7EZZYMJ42YWWD/
https://security.netapp.com/advisory/ntap-20240125-0007/
https://www.debian.org/security/2023/dsa-5587
https://curl.se/docs/CVE-2023-46218.html Patch Vendor Advisory
https://hackerone.com/reports/2212193 Exploit Issue Tracking Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/12/msg00015.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3ZX3VW67N4ACRAPMV2QS2LVYGD7H2MVE/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UOGXU25FMMT2X6UUITQ7EZZYMJ42YWWD/
https://security.netapp.com/advisory/ntap-20240125-0007/
https://www.debian.org/security/2023/dsa-5587
https://cert-portal.siemens.com/productcert/html/ssa-082556.html
https://cert-portal.siemens.com/productcert/html/ssa-093430.html
https://cert-portal.siemens.com/productcert/html/ssa-202008.html
https://cert-portal.siemens.com/productcert/html/ssa-331112.html
Configurations

Configuration 1 (hide)

cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*

History

No history.

Information

Published : 2023-12-07 01:15

Updated : 2026-06-17 06:30


NVD link : CVE-2023-46218

Mitre link : CVE-2023-46218

CVE.ORG link : CVE-2023-46218


JSON object : View

Products Affected

haxx

  • curl

fedoraproject

  • fedora
CWE
NVD-CWE-noinfo CWE-178

Improper Handling of Case Sensitivity