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Curl 8.7.0 < 8.23.0 Cookie Jar Parsing Issue

🗓️ 23 Oct 2026 00:00:00Reported by TenableType 
nessus
 nessus
🔗 www.tenable.com👁 3 Views

Cookie jar parsing issue in curl causes premature parsing when reading long cookie names.

Related
Refs
Code
ReporterTitlePublishedViews
Family
freebsd
FreeBSD
Curl -- Multiple vulnerabilities
14 Oct 202600:00
–freebsd
alpinelinux
AlpineLinux
CVE-2026-92386
20 Oct 202620:17
–alpinelinux
circl
Circl
CVE-2026-92386
20 Oct 202620:32
–circl
curl
curl security advisories
server-set cookie aborts cookie jar load
14 Oct 202608:00
–curl
cve
CVE
CVE-2026-92386
20 Oct 202620:17
–cve
cvelist
Cvelist
CVE-2026-92386 server-set cookie aborts cookie jar load
20 Oct 202620:17
–cvelist
debiancve
Debian CVE
CVE-2026-92386
20 Oct 202620:17
–debiancve
euvd
EUVD
EUVD-2026-105315
20 Oct 202620:17
–euvd
nessus
Tenable Nessus
FreeBSD : Curl -- Multiple vulnerabilities (14dab969-c797-11f1-a6ea-8447094a420f)
14 Oct 202600:00
–nessus
nessus
Tenable Nessus
Ubuntu 26.04 LTS : curl vulnerabilities (USN-8927-1)
19 Oct 202600:00
–nessus
Rows per page
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(371152);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/23");

  script_cve_id("CVE-2026-92386");
  script_xref(name:"IAVA", value:"2026-A-1143");

  script_name(english:"Curl 8.7.0 < 8.23.0 Cookie Jar Parsing Issue");

  script_set_attribute(attribute:"synopsis", value:
"The remote host has a program that is affected by a cookie jar vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of curl installed on the remote host is 8.7.0 prior to 8.23.0. It is, therefore, affected by
a cookie jar vulnerability:

  - When writing a long cookie name and value to a Netscape cookie jar, a remote HTTP server can make
    curl write a record that exceeds its line-length parsing limit. Consequently, any subsequent curl
    invocation reading from that same cookie jar using --cookie silently aborts parsing prematurely upon
    encountering the too long line, ignoring all subsequent valid cookies in the file. (CVE-2026-92386)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://curl.se/docs/CVE-2026-92386.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade Curl to version 8.23.0 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N");
  script_set_attribute(attribute:"cvss_score_source", value:"manual");
  script_set_attribute(attribute:"cvss_score_rationale", value:"score from an analysis done by Tenable");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/10/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/10/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/23");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"asset_categories", value:"component");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:haxx:curl");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("curl_win_installed.nbin", "curl_nix_installed.nbin");
  script_require_keys("installed_sw/Curl");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'checks': [
    {
      'product': {'name': 'Curl', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints': [
        {'min_version': '8.7.0', 'fixed_version': '8.23.0'}
      ]
    }
  ]
};

var res = vdf::check_and_report(vuln_data:vuln_data, severity:SECURITY_WARNING);
vdf::handle_check_and_report_errors(vdf_result:res);

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23 Oct 2026 00:00Current
6Medium risk
Vulners AI Score6
EPSS0.00291
3