Fluentd is Vulnerable to Remote Code Execution (RCE) via Arbitrary File Write in `${tag}` Placeholder

Fluentd allows dynamically constructing file paths using the $tag placeholder. It was discovered that validation for this placeholder was insufficient. If a Fluentd instance is configured to receive logs from untrusted sources and uses the $tag placeholder in file configurations such as the path...

Faraday - Uncontrolled recursion in NestedParamsEncoder allows stack exhaustion DoS via deeply nested query parameters

Uncontrolled Recursion in NestedParamsEncoder Allows Stack Exhaustion DoS via Deeply Nested Query Parameters Summary Faraday::NestedParamsEncoder, the default nested query parameter encoder/decoder in Faraday, decodes nested query strings without enforcing a maximum nesting depth. A crafted query...

Oj - Stack Buffer Overflow in Oj.dump via Large Indent

Summary Oj.dump is vulnerable to a stack-based buffer overflow when a large :indent value is provided by the developer. fillindent in dump.h calls memsetindentstr, ' ', sizetopts-indent without validating the size. When opts-indent is set to INTMAX 2,147,483,647, the sizet cast preserves the larg...

Session cookies can be replayed after user logout

Impact Admin session cookies were not invalidated when an admin user logged out. An attacker with access to a valid admin session cookie could continue to access admin functionality after logout, until the cookie expired or session secrets were rotated. This affects applications using Koi admin...

OpenC3 COSMOS allows arbitrary writes to plugins directory via path-traversed config filenames

Summary OpenC3 COSMOS contains a design flaw in the savetoolconfig function that allows saving tool configuration files at arbitrary locations inside the shared /plugins directory tree by supplying crafted configuration filenames. Although the implementation sufficiently mitigates standard path...

rdiscount has an Out-of-bounds Read

Summary A signed length truncation bug causes an out-of-bounds read in the default Markdown parse path. Inputs larger than INTMAX are truncated to a signed int before entering the native parser, allowing the parser to read past the end of the supplied buffer and crash the process. Details In both...

Avo has a XSS vulnerability on `return_to` param

Description A reflected cross-site scripting XSS vulnerability exists in the returnto query parameter used in the avo interface. An attacker can craft a malicious URL that injects arbitrary JavaScript, which is executed when he clicks a dynamically generated navigation button. Impact This...

null pointer dereference vulnerability in mrubyc 3.4

A security vulnerability has been detected in mrubyc up to 3.4. This impacts the function mrbcrawrealloc of the file src/alloc.c. Such manipulation of the argument ptr leads to null pointer dereference. An attack has to be approached locally...

Rack has a Possible Information Disclosure Vulnerability

Summary A possible information disclosure vulnerability existed in Rack::Sendfile when running behind a proxy that supports x-sendfile headers such as Nginx. Specially crafted headers could cause Rack::Sendfile to miscommunicate with the proxy and trigger unintended internal requests, potentially...

Google Sign-In for Rails allowed redirects to malformed URLs

Summary It is possible to craft a malformed URL that passes the "same origin" check, resulting in the user being redirected to another origin. Details The googlesignin gem persists an optional URL for redirection after authentication. If this URL is malformed, it's possible for the user to be...

CKEditor4 low-risk cross-site scripting (XSS) vulnerability linked to potential domain takeover

Affected Packages The issue impacts only editor instances with enabled version notifications. Please note that this feature is disabled by default in all CKEditor 4 LTS versions. Therefore, if you use CKEditor 4 LTS, it is highly unlikely that you are affected by this vulnerability. If you are...

Command Injection in sequenceserver gem

Impact Several HTTP endpoints did not properly sanitize user input and/or query parameters. This could be exploited to inject and run unwanted shell commands Patches Fixed in 3.1.2 Workarounds No known workarounds...

Fluent Fluentd and Fluent-ui use default password

An issue was discovered in Fluent Fluentd v.1.8.0 and Fluent-ui v.1.2.2 that allows attackers to gain escilated privileges and execute arbitrary code due to use of a default password...

ruby-mysql Client File Read

A malicious MySQL server can request local file content from a client using ruby-mysql prior to version 2.10.0 without explicit authorization from the user. This issue was resolved in version 2.10.0 and later...

katello Improper Privilege Management vulnerability

A flaw was found in Foreman's katello plugin version 3.4.5. After setting a new role to allow restricted access on a repository with a filter filter set on the Product Name, the filter is not respected when the actions are done via hammer using the repository id...

XSS in the `altField` option of the Datepicker widget in jquery-ui

Impact Accepting the value of the altField option of the Datepicker widget from untrusted sources may execute untrusted code. For example, initializing the datepicker in the following way: js $"datepicker".datepicker altField: "", ; will call the doEvilThing function. Patches The issue is fixed i...

Remote code execution in Kramdown

Kramdown before 2.3.1 does not restrict Rouge formatters to the Rouge::Formatters namespace, and thus arbitrary classes can be instantiated...

Heap buffer overflow in mruby interpreter

muby through 2.1.2-rc has a heap-based buffer overflow in the mrbyieldwithclass function in vm.c because of incorrect VM stack handling. It can be triggered via the stackcopy function...

Escape sequence injection vulnerability in verbose

An issue was discovered in RubyGems 2.6 and later through 3.0.2. Since Gem::UserInteractionverbose calls say without escaping, escape sequence injection is possible...

Escape sequence injection vulnerability in api response handling

An issue was discovered in RubyGems 2.6 and later through 3.0.2. Gem::GemcutterUtilitieswithresponse may output the API response to stdout as it is. Therefore, if the API side modifies the response, escape sequence injection may occur...

Filter Problems on Case-Insensitive Filesystems in rails/actionpack

actionpack/lib/actionview/template/resolver.rb in Ruby on Rails 3.0.x before 3.0.4, when a case-insensitive filesystem is used, does not properly implement filters associated with the list of available templates, which allows remote attackers to bypass intended access restrictions via an action...

mapbox-rails Content Injection via TileJSON Name

Mapbox.js versions 1.x prior to 1.6.6 and 2.x prior to 2.2.4 are vulnerable to a cross-site-scripting attack in certain uncommon usage scenarios. If you use L.mapbox.map and L.mapbox.shareControl it is possible for a malicious user with control over the TileJSON content to inject script content...

VladTheEnterprising Gem for Ruby /tmp/my.cnf.#{target_host} Symlink Multiple Impact

VladTheEnterprising Gem for Ruby contains a flaw as the program creates temporary files insecurely. It is possible for a local attacker to use a symlink attack against the /tmp/my.cnf.targethost file they can overwrite arbitrary files, gain access to the MySQL root password, or inject arbitrary...

Fat Free CRM Gem for Ruby allows remote attackers to obtain sensitive informations

Fat Free CRM contains a flaw that is triggered when the attacker sends a direct request for XML data. This may allow a remote attacker to gain access to potentially sensitive information...

omniauth-facebook Gem for Ruby Unspecified CSRF

omniauth-facebook Gem for Ruby contains a flaw as HTTP requests do not require multiple steps, explicit confirmation, or a unique token when performing certain sensitive actions. By tricking a user into following a specially crafted link, a context-dependent attacker can perform a Cross-Site...

Sup wrongly handled the filename of attachments

Sup MUA contains a flaw that is triggered when handling email attachment content. This may allow a context-dependent attacker to execute arbitrary commands...

Show In Browser Gem for Ruby /tmp/browser.html Arbitrary Script Injection

Show In Browser Gem for Ruby contains a flaw that is triggered when the application does not validate input passed via the /tmp/browser.html file. This may allow a local attacker to create a specially crafted request that would execute arbitrary script code in a user's browser...

ftpd Gem for Ruby Shell Character Handling Remote Command Injection

ftpd Gem for Ruby contains a flaw that is triggered when handling a specially crafted option or filename that contains a shell character. This may allow a remote attacker to inject arbitrary commands...

Spree payment_methods_controller.rb payment_method Parameter Arbitrary Ruby Object Instantiation Command Execution

Spree contains a flaw that is triggered when handling input passed via the 'paymentmethod' parameter to paymentmethodscontroller.rb. This may allow a remote authenticated attacker to instantiate arbitrary Ruby objects and potentially execute arbitrary commands...

Spree promotion_actions_controller.rb promotion_action Parameter Arbitrary Ruby Object Instantiation Command Execution

Spree contains a flaw that is triggered when handling input passed via the 'promotionaction' parameter to promotionactionscontroller.rb. This may allow a remote authenticated attacker to instantiate arbitrary Ruby objects and potentially execute arbitrary commands...

Denial of service vulnerabilities in the Ruby CGI

The cgi.rb CGI library for Ruby 1.8 allows remote attackers to cause a denial of service infinite loop and CPU consumption via an HTTP request with a multipart MIME body that contains an invalid boundary specifier, as demonstrated using a specifier that begins with a "-" instead of "--" and...

Concurrent Ruby - `ReentrantReadWriteLock` read-count overflow grants a write lock without exclusivity

Summary Concurrent::ReentrantReadWriteLock can incorrectly grant a write lock after one thread acquires the read lock 32,768 times. The lock stores a thread's local read and write hold counts in one integer. The low 15 bits are used for the read hold count, and bit 15 is used as WRITELOCKHELD...

Direct attachment upload endpoint lacks upload authorization and bypasses field-level upload policy

Summary Avo's direct attachment upload endpoint lacks server-side upload authorization and bypasses the documented field-level upload policy methods such as uploadFIELDID?. An authenticated Avo user who can reach the Avo attachment upload endpoint can replace or add attachment content, including...

SSRF and Local File Disclosure in `CssParser::Parser#read_remote_file`

Summary CssParser::Parserreadremotefile and therefore loaduri!, and the @import-following branch of addblock! issues HTTP/HTTPS requests against any host, port and URI it is handed, with no scheme allowlist, no host / IP filtering, and no protection against link-local, loopback or RFC‑1918...

Mongoid::Criteria.from_hash method allows arbitrary method calls

Under specific conditions when processing a maliciously crafted value of type Hash r, Mongoid::Criteria.fromhash may allow for executing arbitrary Ruby code...

Unauthenticated Spree Commerce users can view completed guest orders by Order ID

Unauthenticated users can view completed guest orders by Order ID GHSL-2026-029 The OrdersControllershow action permits viewing completed guest orders by order number alone, without requiring the associated order token. Order lookup without enforcing token requirement in OrdersControllershow: rub...

fog-kubevirt allows remote attacker to perform MITM attack due to disabled certificate validation

A flaw was found in fog-kubevirt. This vulnerability allows a remote attacker to perform a Man-in-the-Middle MITM attack due to disabled certificate validation. This enables the attacker to intercept and potentially alter sensitive communications between Satellite and OpenShift, resulting in...

Spree API has Authenticated Insecure Direct Object Reference (IDOR) via Order Modification

Summary An Authenticated Insecure Direct Object Reference IDOR vulnerability was identified that allows an authenticated user to retrieve other users’ address information by modifying an existing order. By editing an order they legitimately own and manipulating address identifiers in the request,...

Ruby-saml allows a Libxml2 Canonicalization error to bypass Digest/Signature validation

Summary Ruby-saml up to and including 1.12.4, there is an authentication bypass vulnerability because of an issue at libxml2 canonicalization process used by Nokogiri for document transformation. That allows an attacker to be able to execute a Signature Wrapping attack. The vulnerability does not...

Cross-Site Scripting (XSS) vulnerability through unescaped HTML attribute values

Impact The prosemirrortohtml gem is vulnerable to Cross-Site Scripting XSS attacks through malicious HTML attribute values. While tag content is properly escaped, attribute values are not, allowing attackers to inject arbitrary JavaScript code. Who is impacted: - Any application using...

CVE-2025-61594 - URI Credential Leakage Bypass over CVE-2025-27221

In affected URI version, a bypass exists for the fix to CVE-2025-27221 that can expose user credentials. This vulnerability has been assigned the CVE identifier CVE-2025-61594. We recommend upgrading the uri gem. Details When using the + operator to combine URIs, sensitive information like...

Spina Cross-site Scripting vulnerability

Cross-site Scripting XSS - Stored in GitHub repository spinacms/spina prior to 2.15.1...

Elasticsearch Logstash allows remote attackers to execute arbitrary commands

Elasticsearch Logstash 1.0.14 through 1.4.x before 1.4.2 allows remote attackers to execute arbitrary commands via a crafted event in 1 zabbix.rb or 2 nagiosnsca.rb in outputs/...

Elasticsearch Logstash allows remote attackers to execute arbitrary commands

Elasticsearch Logstash 1.0.14 through 1.4.x before 1.4.2 allows remote attackers to execute arbitrary commands via a crafted event in 1 zabbix.rb or 2 nagiosnsca.rb in outputs/...

RubyGems Infinite Loop vulnerability

RubyGems version Ruby 2.2 series: 2.2.9 and earlier, Ruby 2.3 series: 2.3.6 and earlier, Ruby 2.4 series: 2.4.3 and earlier, Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contains a infinite loop caused by negative size vulnerability in ruby gem package tar header that can...

Command Injection vulnerability in asciidoctor-include-ext

Impact Applications using Asciidoctor Ruby with asciidoctor-include-ext prior to version 0.4.0, which render user-supplied input in AsciiDoc markup, may allow an attacker to execute arbitrary system commands on the host operating system. This attack is possible even when allow-uri-read is disable...

Improper Authorization in Publify

In Publify, 9.0.0.pre1 to 9.2.4 are vulnerable to Improper Access Control. guest role users can self-register even when the admin does not allow. This happens due to front-end restriction only...

Fake objects feature vulnerability allowing to execute JavaScript code using malformed HTML.

Affected packages The vulnerability has been discovered in Fake Objects plugin. All plugins with Fake Objects plugin dependency are affected: Fake Objects Link Flash Iframe Forms Page Break Impact A potential vulnerability has been discovered in CKEditor 4 Fake Objects package. The vulnerability...

Code execution backdoor in omniauth_amazon

The omniauthamazon gem 1.0.1 for Ruby, as distributed on RubyGems.org, included a code-execution backdoor inserted by a third party. Users of an affected version should consider downgrading to the last non-affected version of 1.0.1...

smart_proxy_dynflow gem authentication bypass in Foreman remote execution feature

An authentication bypass flaw was found in the smartproxydynflow component used by Foreman. A malicious attacker can use this flaw to remotely execute arbitrary commands on machines managed by vulnerable Foreman instances, in a highly privileged context...