The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - In the CGI gem before 0.4.2 for Ruby, the CGI::Cookie.parse method in the CGI library contains a potential     Denial of Service (DoS) vulnerability. The method does not impose any limit on the length of the raw     cookie value it processes. This oversight can lead to excessive resource consumption when parsing     extremely large cookies. (CVE-2025-27219)

Note that Nessus relies on the presence of the package as reported by the vendor.

According to the versions of the ruby packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    In the CGI gem before 0.4.2 for Ruby, the CGI::Cookie.parse method in the CGI library contains a potential     Denial of Service (DoS) vulnerability. The method does not impose any limit on the length of the raw     cookie value it processes. This oversight can lead to excessive resource consumption when parsing     extremely large cookies.(CVE-2025-27219)

    In the URI gem before 1.0.3 for Ruby, the URI handling methods (URI.join, URI#merge, URI#+) have an     inadvertent leakage of authentication credentials because userinfo is retained even after changing the     host.(CVE-2025-27221)

    In the CGI gem before 0.4.2 for Ruby, a Regular Expression Denial of Service (ReDoS) vulnerability exists     in the Util#escapeElement method.(CVE-2025-27220)

Tenable has extracted the preceding description block directly from the EulerOS ruby security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2025-10217 advisory.

    - Fix Net::IMAP vulnerable to possible DoS by memory exhaustion. (CVE-2025-25186)
    - Fix Denial of Service in CGI::Cookie.parse. (CVE-2025-27219)
    - Fix userinfo leakage in URI#join, URI#merge and URI#+. (CVE-2025-27221)

    rubygem-abrt

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2025:0560 advisory.

    Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

    CVE-2025-25186:
    Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Starting in     version 0.3.2 and prior to versions 0.3.8, 0.4.19, and 0.5.6, there is a possibility for denial of service     by memory exhaustion in net-imap's response parser.  At any time while the client is connected, a     malicious server can send  can send highly compressed uid-set data which is automatically read by the     client's receiver thread. The response parser uses Range#to_a to convert the uid-set data into arrays of     integers, with no limitation on the expanded size of the ranges. Versions 0.3.8, 0.4.19, 0.5.6, and higher     fix this issue. Additional details for proper configuration of fixed versions and backward compatibility     are available in the GitHub Security Advisory.

    CVE-2025-27219:
    In the CGI gem before 0.4.2 for Ruby, the CGI::Cookie.parse method in the CGI library contains a potential     Denial of Service (DoS) vulnerability. The method does not impose any limit on the length of the raw     cookie value it processes. This oversight can lead to excessive resource consumption when parsing     extremely large cookies.

    CVE-2025-27221:
    In the URI gem before 1.0.3 for Ruby, the URI handling methods (URI.join, URI#merge, URI#+) have an     inadvertent leakage of authentication credentials because userinfo is retained even after changing the     host.

Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote MiracleLinux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2025-9910:01 advisory.

    * CVE-2025-27219: fix a potential Denial of Service (DoS) vulnerability in     cookie parsing
    * CVE-2025-27220: fix ReDoS vulnerability exists in the escapeElement   method
    * CVE-2025-27221: fix he URI handling methods (URI.join, URI#merge, URI#+)     CVE(s):
    CVE-2024-49761     REXML is an XML toolkit for Ruby. The REXML gem before 3.3.9 has a ReDoS vulnerability when it parses an     XML that has many digits between &# and x...; in a hex numeric character reference (&#x...;). This does     not happen with Ruby 3.2 or later. Ruby 3.1 is the only affected maintained Ruby. The REXML gem 3.3.9 or     later include the patch to fix the vulnerability.
    CVE-2025-27219     In the CGI gem before 0.4.2 for Ruby, the CGI::Cookie.parse method in the CGI library contains a potential     Denial of Service (DoS) vulnerability. The method does not impose any limit on the length of the raw     cookie value it processes. This oversight can lead to excessive resource consumption when parsing     extremely large cookies.
    CVE-2025-27220     In the CGI gem before 0.4.2 for Ruby, a Regular Expression Denial of Service (ReDoS) vulnerability exists     in the Util#escapeElement method.
    CVE-2025-27221     In the URI gem before 1.0.3 for Ruby, the URI handling methods (URI.join, URI#merge, URI#+) have an     inadvertent leakage of authentication credentials because userinfo is retained even after changing the     host.

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:4264-1 advisory.

    - CVE-2024-35221: Fixed remote DoS via YAML manifest (bsc#1225905)
    - CVE-2024-47220: Fixed HTTP request smuggling in WEBrick (bsc#1230930)
    - CVE-2024-49761: Fixed ReDOS vulnerability by updating REXML to 3.3.9 (bsc#1232440)
    - CVE-2025-24294: Fixed denial of service (DoS) caused by an insufficient check on the length       of a decompressed domain name within a DNS packet in resolv gem (bsc#1246430)
    - CVE-2025-27219: Fixed denial of service in CGI::Cookie.parse (bsc#1237804)
    - CVE-2025-27220: Fixed ReDoS in CGI::Util#escapeElement (bsc#1237806)
    - CVE-2025-27221: Fixed userinfo leakage in URI#join, URI#merge and URI#+ (bsc#1237805)
    - CVE-2025-6442: Fixed ruby WEBrick read_header HTTP request smuggling vulnerability (bsc#1245254)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2025:4488 advisory.

    * rexml: DoS vulnerability in REXML (CVE-2024-39908)

    * rexml: rubygem-rexml: DoS when parsing an XML having many specific characters such as whitespace     character, >] and ]> (CVE-2024-41123)

    * rexml: DoS vulnerability in REXML (CVE-2024-41946)

    * rexml: DoS vulnerability in REXML (CVE-2024-43398)

    * CGI: ReDoS in CGI::Util#escapeElement (CVE-2025-27220)

    * CGI: Denial of Service in CGI::Cookie.parse (CVE-2025-27219)

    * uri: userinfo leakage in URI#join, URI#merge and URI#+ (CVE-2025-27221)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
232142	Linux Distros Unpatched Vulnerability : CVE-2025-27219	Nessus	Misc.	3/6/2025	8/4/2026	high
238215	EulerOS 2.0 SP12 : ruby (EulerOS-SA-2025-1603)	Nessus	Huawei Local Security Checks	6/11/2025	6/11/2025	medium
241373	Oracle Linux 8 : ruby:3.3 (ELSA-2025-10217)	Nessus	Oracle Linux Local Security Checks	7/4/2025	9/11/2025	medium
276200	TencentOS Server 3: ruby:3.3 (TSSA-2025:0560)	Nessus	Tencent Local Security Checks	11/20/2025	12/4/2025	medium
282961	MiracleLinux 7 : ruby-2.0.0.648-39.0.2.el7.AXS7 (AXSA:2025-9910:01)	Nessus	Miracle Linux Local Security Checks	1/13/2026	1/13/2026	high
277246	SUSE SLED15: libruby2_5-2_5 / ruby2.5 / ruby2.5-devel / ruby2.5-devel-extra / etc (SUSE-SU-2025:4264-1)	Nessus	SuSE Local Security Checks	12/3/2025	6/26/2026	high
243116	RockyLinux 9 : ruby:3.1 (RLSA-2025:4488)	Nessus	Rocky Linux Local Security Checks	7/30/2025	7/30/2025	high

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