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
02 Description
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
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 1.68% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 76.5% of scored records. A rank, not a probability.
- NVD base score
- 6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2023-12-07 01:10Z2 YR AGO
- Last updated
- 2026-10-15 00:04Z14 DAYS AGO
- Reserved
- 2023-10-19
- Assigning CNA
- hackerone
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- Weaknesses
- Data version
- 5.2
- Document digest
- 65918c89360972f98d3b4753332eaad77d197c380890120b3bf0008f81a84552
05 Affected products
06 References
- hackerone.comhttps://hackerone.com/reports/2212193
- curl.sehttps://curl.se/docs/CVE-2023-46218.html
- lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3ZX3VW67N4ACRAPMV2QS2LVYGD7H2MVE/
- lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UOGXU25FMMT2X6UUITQ7EZZYMJ42YWWD/
- lists.debian.orghttps://lists.debian.org/debian-lts-announce/2023/12/msg00015.html
- www.debian.orghttps://www.debian.org/security/2023/dsa-5587
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20240125-0007/
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-093430.html
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-331112.html
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-082556.html
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-202008.html
07 Fixed in
AlmaLinux 8
- curl Fixed in 7.61.1-33.el8_9.5
- libcurl Fixed in 7.61.1-33.el8_9.5
- libcurl-devel Fixed in 7.61.1-33.el8_9.5
- libcurl-minimal Fixed in 7.61.1-33.el8_9.5
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- curl Fixed in 7.76.1-26.el9_3.3
- curl-minimal Fixed in 7.76.1-26.el9_3.3
- libcurl Fixed in 7.76.1-26.el9_3.3
- libcurl-devel Fixed in 7.76.1-26.el9_3.3
- libcurl-minimal Fixed in 7.76.1-26.el9_3.3
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- curl Fixed in 7.61.1-33.el8_9.5
- libcurl Fixed in 7.61.1-33.el8_9.5
- libcurl-devel Fixed in 7.61.1-33.el8_9.5
- libcurl-minimal Fixed in 7.61.1-33.el8_9.5
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- curl Fixed in 7.76.1-26.el9_3.3
- curl-minimal Fixed in 7.76.1-26.el9_3.3
- libcurl Fixed in 7.76.1-26.el9_3.3
- libcurl-devel Fixed in 7.76.1-26.el9_3.3
- libcurl-minimal Fixed in 7.76.1-26.el9_3.3
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- curl Fixed in 7.88.1-10+deb12u5
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- curl Fixed in 8.5.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- curl Fixed in 8.5.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- curl Fixed in 7.68.0-1ubuntu2.21
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- curl Fixed in 7.81.0-1ubuntu1.15
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- curl Fixed in 7.47.0-1ubuntu2.19+esm11Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- curl Fixed in 7.58.0-2ubuntu3.24+esm3Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.