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Apache Tomcat 10.1.0.M1 < 10.1.57 multiple vulnerabilities

🗓️ 14 Jul 2026 00:00:00Reported by TenableType 
nessus
 nessus
🔗 www.tenable.com👁 3 Views

Tomcat before 10.1.57 has multiple vulnerabilities including URL encoding bypass and EncryptInterceptor documentation gaps; upgrade to 11.0.24, 10.1.57, or 9.0.120.

Related
Refs
Code
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-59084
14 Jul 202608:24
attackerkb
ATTACKERKB
CVE-2026-59083
14 Jul 202608:13
attackerkb
Circl
CVE-2026-59083
14 Jul 202609:50
circl
Circl
CVE-2026-59084
14 Jul 202609:35
circl
CVE
CVE-2026-59083
14 Jul 202608:13
cve
CVE
CVE-2026-59084
14 Jul 202608:24
cve
Cvelist
CVE-2026-59083 Apache Tomcat: Incorrect URL decoding in RewriteValve may allow security control bypass
14 Jul 202608:13
cvelist
Cvelist
CVE-2026-59084 Apache Tomcat: EncryptInterceptor requirements not clearly documented
14 Jul 202608:24
cvelist
EUVD
EUVD-2026-43638
14 Jul 202608:13
euvd
EUVD
EUVD-2026-43640
14 Jul 202608:24
euvd
Rows per page
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(326731);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/07/15");

  script_cve_id("CVE-2026-59083", "CVE-2026-59084");

  script_name(english:"Apache Tomcat 10.1.0.M1 < 10.1.57 multiple vulnerabilities");

  script_set_attribute(attribute:"synopsis", value:
"The remote Apache Tomcat server is affected by multiple vulnerabilities");
  script_set_attribute(attribute:"description", value:
"The version of Tomcat installed on the remote host is prior to 10.1.57. It is, therefore, affected by multiple
vulnerabilities as referenced in the fixed_in_apache_tomcat_10.1.57_security-10 advisory.

  - Improper Handling of URL Encoding (Hex Encoding) vulnerability in Apache Tomcat's rewrite valve allowed
    security constraint bypass for some configurations. This issue affects Apache Tomcat: from 11.0.0-M1
    through 11.0.23, from 10.1.0-M1 through 10.1.56, from 9.0.0.M1 through 9.0.119, from 8.5.0 through
    8.5.100. Other versions that have reached end of support may also be affected. Users are recommended to
    upgrade to version 11.0.24, 10.1.57 or 9.0.120, which fix the issue. (CVE-2026-59083)

  - Insufficient Technical Documentation vulnerability in Apache Tomcat since the requirements to securely
    configure the EncryptInterceptor were not clearly documented. This issue affects Apache Tomcat: from
    11.0.0-M1 through 11.0.23, from 10.1.0-M1 through 10.1.56, from 9.0.13 through 9.0.119, from 8.5.38
    through 8.5.100, from 7.0.100 through 7.0.109. Other versions that have reached end of support may also be
    affected. Users are recommended to upgrade to version 11.0.24, 10.1.57 or 9.0.120 which fix the issue.
    (CVE-2026-59084)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://github.com/apache/tomcat/commit/79466463f18cf57704513a5aaa93961bf14c9ef5
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e0bb1c1c");
  # https://github.com/apache/tomcat/commit/04e9ec3d32209faa26ca6c23ebd9ad514690aec0
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?12a2d832");
  # https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.57
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c982231a");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Apache Tomcat version 10.1.57 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/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:H/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-59083");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2026-59084");

  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:"2026/07/07");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/07/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/07/14");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:apache:tomcat:10");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Web Servers");

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

  script_dependencies("os_fingerprint.nasl", "tomcat_error_version.nasl", "tomcat_win_installed.nbin", "apache_tomcat_nix_installed.nbin");
  script_require_keys("installed_sw/Apache Tomcat");

  exit(0);
}

include('vcf_extras.inc');

vcf::tomcat::initialize();
var app_info = vcf::combined_get_app_info(app:'Apache Tomcat');

var constraints = [
  { 'min_version' : '10.1.0.M1', 'max_version' : '10.1.56', 'fixed_version' : '10.1.57' }
];

vcf::check_all_backporting(app_info:app_info);
vcf::check_granularity(app_info:app_info, sig_segments:3);
vcf::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    severity:SECURITY_WARNING
);

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15 Jul 2026 00:00Current
6.2Medium risk
Vulners AI Score6.2
CVSS 3.19.1
EPSS0.00376
SSVC
3