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Atlassian Confluence 7.19.x < 8.5.10 / 8.6.x < 9.2.5 / 9.3.x < 9.3.1 / 9.4.x < 9.5.1 / 10.0.2 / 10.1.0 / 10.2.0 (CONFSERVER-101930)

🗓️ 20 Feb 2026 00:00:00Reported by TenableType 
nessus
 nessus
🔗 www.tenable.com👁 4 Views

Confluence server vulnerable to tar-fs symlink bypass CVE-2025-59343; tar-fs patched.

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#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(299658);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/02/20");

  script_cve_id("CVE-2025-59343");

  script_name(english:"Atlassian Confluence 7.19.x < 8.5.10 / 8.6.x < 9.2.5 / 9.3.x < 9.3.1 / 9.4.x < 9.5.1 / 10.0.2 / 10.1.0 / 10.2.0 (CONFSERVER-101930)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Atlassian Confluence host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The version of Atlassian Confluence Server running on the remote host is affected by a vulnerability as referenced in
the CONFSERVER-101930 advisory.

  - tar-fs provides filesystem bindings for tar-stream. Versions prior to 3.1.1, 2.1.3, and 1.16.5 are
    vulnerable to symlink validation bypass if the destination directory is predictable with a specific
    tarball. This issue has been patched in version 3.1.1, 2.1.4, and 1.16.6. A workaround involves using the
    ignore option on non files/directories. (CVE-2025-59343)

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://jira.atlassian.com/browse/CONFSERVER-101930");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Atlassian Confluence version 8.5.10, 9.2.5, 9.3.1, 9.5.1, 10.0.2, 10.1.0, 10.2.0 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:C/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:U");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-59343");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/09/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/01/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/02/20");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:atlassian:confluence");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_set_attribute(attribute:"enable_cgi_scanning", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

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

  script_dependencies("confluence_detect.nasl", "confluence_nix_installed.nbin", "confluence_win_installed.nbin");
  script_require_keys("installed_sw/Atlassian Confluence");

  exit(0);
}

include('vcf.inc');

var app_info = vcf::combined_get_app_info(app:'Atlassian Confluence');

var constraints = [
  { 'min_version' : '7.19.0', 'fixed_version' : '8.5.10' },
  { 'min_version' : '8.6.0', 'fixed_version' : '9.2.5' },
  { 'min_version' : '9.3.0', 'fixed_version' : '9.3.1' },
  { 'min_version' : '9.4.0', 'fixed_version' : '9.5.1', 'fixed_display' : '9.5.1 / 10.0.2 / 10.1.0 / 10.2.0' }
];

vcf::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    severity:SECURITY_HOLE
);

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20 Feb 2026 00:00Current
6.3Medium risk
Vulners AI Score6.3
CVSS 48.7
EPSS0.00033
SSVC
4