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
                    Configurations
                    History
                    30 Jun 2025, 17:15
| Type | Values Removed | Values Added | 
|---|---|---|
| CWE | CWE-178 | 
13 Feb 2025, 18:15
| Type | Values Removed | Values Added | 
|---|---|---|
| Summary | (en) 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. | 
21 Nov 2024, 08:28
| Type | Values Removed | Values Added | 
|---|---|---|
| References | () https://curl.se/docs/CVE-2023-46218.html - Patch, Vendor Advisory | |
| References | () https://hackerone.com/reports/2212193 - Exploit, Issue Tracking, Patch, Third Party Advisory | |
| References | () https://lists.debian.org/debian-lts-announce/2023/12/msg00015.html - | |
| References | () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3ZX3VW67N4ACRAPMV2QS2LVYGD7H2MVE/ - Mailing List, Third Party Advisory | |
| References | () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UOGXU25FMMT2X6UUITQ7EZZYMJ42YWWD/ - | |
| References | () https://security.netapp.com/advisory/ntap-20240125-0007/ - | |
| References | () https://www.debian.org/security/2023/dsa-5587 - | 
25 Jan 2024, 14:15
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| References | 
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24 Dec 2023, 13:15
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| References | 
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22 Dec 2023, 16:15
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| References | 
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15 Dec 2023, 03:15
| Type | Values Removed | Values Added | 
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| References | 
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12 Dec 2023, 15:53
| Type | Values Removed | Values Added | 
|---|---|---|
| References | () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3ZX3VW67N4ACRAPMV2QS2LVYGD7H2MVE/ - Mailing List, Third Party Advisory | |
| References | () https://hackerone.com/reports/2212193 - Exploit, Issue Tracking, Patch, Third Party Advisory | |
| References | () https://curl.se/docs/CVE-2023-46218.html - Patch, Vendor Advisory | |
| CVSS | v2 : v3 : | v2 : unknown v3 : 6.5 | 
| CWE | NVD-CWE-noinfo | |
| First Time | Fedoraproject fedora Haxx Haxx curl Fedoraproject | |
| CPE | cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* | 
10 Dec 2023, 03:15
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| References | 
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07 Dec 2023, 01:15
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| New CVE | 
Information
                Published : 2023-12-07 01:15
Updated : 2025-06-30 17:15
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
                