Arbitrary file write in dragonfly

An argument injection vulnerability in Dragonfly Ruby Gem v1.3.0 allows attackers to read and write arbitrary files when the verifyurl option is disabled. This vulnerability is exploited via a crafted URL...

apollo_upload_server has Denial of Service vulnerability

A Denial Of Service vulnerability in the apollouploadserver Ruby gem in GitLab CE/EE version 11.11 and above allows an attacker to deny access to all users via specially crafted requests to the apollouploadserver middleware...

Puppet does not properly restrict access to node resources

Puppet 2.6.0 through 2.6.3 does not properly restrict access to node resources, which allows remote authenticated Puppet nodes to read or modify the resources of other nodes via unspecified vectors...

User after free in mrb_vm_exec in mruby/mruby

User after free in mrbvmexec in GitHub repository mruby/mruby prior to 3.2...

XSS via `translate` method of `ViewComponent::Translatable` in view_component gem

This is an XSS vulnerability that has the potential to impact anyone using translations with the viewcomponent gem. Data received via user input and passed as an interpolation argument to the translate method is not properly sanitized before display. Versions 2.31.2 and 2.49.1 have been released...

Heap-based Buffer Overflow in mruby/mruby

Heap-based Buffer Overflow in Homebrew mruby prior to 3.2...

Business Logic Errors in Publify

Publify formerly known as Typo prior to version 9.2.7 is vulnerable to business logic errors...

NULL Pointer Dereference in mruby/mruby

NULL Pointer Dereference in Homebrew mruby prior to 3.2...

ReDoS vulnerability in parser_apache2

Impact parserapache2 plugin in Fluentd v0.14.14 to v1.14.1 suffers from a regular expression denial of service ReDoS vulnerability. A broken apache log with a certain pattern of string can spend too much time in a regular expression, resulting in the potential for a DoS attack. Patches v1.14.2...

Cross-site Scripting in Sidekiq

Sidekiq through 5.1.3 and 6.x through 6.2.0 allows XSS via the queue name of the live-poll feature when Internet Explorer is used...

Cross-Site Scripting in Qiita::Markdown

Increments Qiita::Markdown before 0.33.0 allows XSS in transformers...

imap - StartTLS stripping attack

An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. Net::IMAP does not raise an exception when StartTLS fails with an an unknown response, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between th...

Remote code execution in Dragonfly

An argument injection vulnerability in the Dragonfly gem before 1.4.0 for Ruby allows remote attackers to read and write to arbitrary files via a crafted URL when the verifyurl option is disabled. This may lead to code execution. The problem occurs because the generate and process features...

Connection security vulnerability with schema sync

pgsync drops connection parameters when syncing the schema with the --schema-first and --schema-only options. Some of these parameters may affect security. For instance, if sslmode is dropped, the connection may not use SSL. The first connection parameter is not affected. pgsync drops connection...

Regression in JWT Signature Validation

Overview Versions after and including 2.3.0 are improperly validating the JWT token signature when using the JWTValidator.verify method. Improper validation of the JWT token signature when not using the default Authorization Code Flow can allow an attacker to bypass authentication and...

Installing a malicious gem may lead to arbitrary code execution

An issue was discovered in RubyGems 2.6 and later through 3.0.2. A crafted gem with a multi-line name is not handled correctly. Therefore, an attacker could inject arbitrary code to the stub line of gemspec, which is eval-ed by code in ensureloadablespec during the preinstall check...

Use of uninitialized pointer in mrb_hash_keys

The initcopy function in kernel.c in mruby 1.4.1 makes initializecopy calls for TTICLASS objects, which allows attackers to cause a denial of service mrbhashkeys uninitialized pointer and application crash or possibly have unspecified other impact...

RuboCop gem Insecure use of /tmp

RuboCop 0.48.1 and earlier does not use /tmp in safe way, allowing local users to exploit this to tamper with cache files belonging to other users...

codders-dataset Gem for Ruby lib/dataset/database/mysql.rb and lib/dataset/database/postgresql.rb Process Table Local Plaintext Credential Disclosure

"1 lib/dataset/database/mysql.rb and 2 lib/dataset/database/postgresql.rb in the codders-dataset gem 1.3.2.1 for Ruby place credentials on the mysqldump command line, which allows local users to obtain sensitive information by listing the process."...

Fat Free CRM Gem for Ruby contains multiple cross-site request forgery (CSRF) vulnerabilities

Fat Free CRM contains a flaw as the application is missing the protectfromforgery statement, therefore HTTP requests to app/controllers/applicationcontroller.rb do not require multiple steps, explicit confirmation, or a unique token when performing certain sensitive actions. By tricking a user in...

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...

Bio Basespace SDK Gem for Ruby Command Line API Key Disclosure

Bio Basespace SDK Gem for Ruby contains a flaw that is due to the API client code passing the APIKEY to a curl command. This may allow a local attacker to gain access to API key information by monitoring the process table...

MiniMagick Gem for Ruby URI Handling Arbitrary Command Injection

MiniMagick Gem for Ruby contains a flaw that is triggered during the handling of specially crafted input from an untrusted source passed via a URL that contains a ';' character. This may allow a context-dependent attacker to potentially execute arbitrary commands...

Directory traversal vulnerability in WEBrick

Directory traversal vulnerability in WEBrick when running on systems that support backslash path separators or case-insensitive file names, allows remote attackers to access arbitrary files via 1 "..%5c" encoded backslash sequences or 2 filenames that match patterns in the :NondisclosureName opti...

CVE-2026-80213 - Hostname validation bypass

An application that checks a hostname against an allow list or an SSRF filter and then resolves it can be made to look up a domain other than the one it checked. The string that passes validation and the name that reaches the network are not the same, so the connection can end up at a host the...

Unbounded session retention in StreamableHTTPTransport allows memory exhaustion via initialize flood

Summary In its default configuration, MCP::Server::Transports::StreamableHTTPTransport never expires sessions. Every successful initialize request stores a new ServerSession and a session record under a fresh UUID, and the only path that removes them is an explicit client-issued HTTP DELETE. An...

MCP Ruby SDK - Ruby SSE Session Poisoning

Summary Vulnerability: Missing Session Ownership Validation in the Ruby MCP SDK's Streamable and SSE HTTP transport implementation. Any attacker with a stolen session ID can execute tools with the victim's session. This is a silent attack - the victim's session is compromised and being used for...

mrubyc through 3.4.1 was found to contain a NULL pointer dereference

mrubyc through 3.4.1 was found to contain a NULL pointer dereference in src/vm.c in opsuper / OPSUPER due to a missing runtime guard for top-level super...

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...

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...

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...

Puma PROXY Protocol v1 Accepts Repeated Protocol Headers on Persistent Connections

Impact Puma is vulnerable to source IP spoofing when setremoteaddress proxyprotocol: :v1 is enabled and persistent connections are used. PROXY protocol v1 is a connection-level protocol. Support was added to Puma in v5.5.0. A proxy sends one PROXY header at the beginning of a TCP connection, befo...

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...

Rack's unbounded multipart preamble buffering enables DoS (memory exhaustion)

Summary Rack::Multipart::Parser buffers the entire multipart preamble bytes before the first boundary in memory without any size limit. A client can send a large preamble followed by a valid boundary, causing significant memory use and potential process termination due to out-of-memory OOM...

Spree Commerce is vulnerable to RCE through Search API

Spreecommerce versions prior to 0.50.x contain a remote command execution vulnerability in the API's search functionality. Improper input sanitation allows attackers to inject arbitrary shell commands via the searchinstanceeval parameter, which is dynamically invoked using Ruby’s send method. Thi...

Active Record logging vulnerable to ANSI escape injection

This vulnerability has been assigned the CVE identifier CVE-2025-55193 Impact The ID passed to find or similar methods may be logged without escaping. If this is directly to the terminal, it may include unescaped ANSI sequences. Releases The fixed releases are available at the normal locations...

OpenC3 COSMOS Vulnerable to Directory Traversal via /script-api/scripts/ endpoint

An issue in the /script-api/scripts/ endpoint of OpenC3 COSMOS 6.0.0 allows attackers to execute a directory traversal...

Decidim Cross-site Scripting vulnerability in the processes filter

Impact The processes filter feature is susceptible to Cross-site scripting. This allows a remote attacker to execute JavaScript code in the context of a currently logged-in user. An attacker could use this vulnerability to make other users endorse or support proposals they have no intention of...

Integer overflow in publify_core

Integer Overflow or Wraparound in GitHub repository publify/publify prior to 9.2.10 due to an unlimited length user name field...

keynote Cross-site Scripting vulnerability

A vulnerability was found in rf Keynote up to 0.x. It has been rated as problematic. Affected by this issue is some unknown functionality of the file lib/keynote/rumble.rb. The manipulation of the argument value leads to cross site scripting. The attack may be launched remotely. Upgrading to...

Oxidized Web vulnerable to Cross-site Scripting

A vulnerability was found in ytti Oxidized Web. It has been classified as problematic. Affected is an unknown function of the file lib/oxidized/web/views/confsearch.haml. The manipulation of the argument toresearch leads to cross site scripting. It is possible to launch the attack remotely. The...

Katello cleartext password storage issue

A cleartext password storage issue was discovered in Katello, versions 3.x.x.x before katello 3.12.2. Registry credentials used during container image discovery were inadvertently logged without being masked. This flaw could expose the registry credentials to other privileged users...

Elastic APM agent for Ruby vulnerable to Improper Certificate Validation

A TLS certificate validation flaw was found in Elastic APM agent for Ruby versions before 2.9.0. When specifying a trusted server CA certificate via the servercacert setting, the Ruby agent would not properly verify the certificate returned by the APM server. This could result in a man in the...

RubyGems Path Traversal 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 Directory Traversal vulnerability in gem installation that can result in the gem writing to...

Puppet arbitrary file overwrite

Puppet 2.7.x before 2.7.5, 2.6.x before 2.6.11, and 0.25.x allows local users to overwrite arbitrary files via a symlink attack on the .k5login file...

Asciidoctor Infinite Loop vulnerability

Asciidoctor in versions 1.5.8 allows remote attackers to cause a denial of service infinite loop. The loop was caused by the fact that Parser.nextblock was not exhausting all the lines in the reader as the while loop expected it would. This was happening because the regular expression that detect...

RubyGems Link Following 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 Directory Traversal vulnerability in installlocation function of package.rb that can result in...

Gem in a Box vulnerable to Cross-site Scripting

geminabox aka Gem in a Box before 0.13.6 is vulnerable to Cross-site Scripting XSS, as demonstrated by uploading a gem file that has a crafted gem.homepage value in its .gemspec file...

mixlib-archive Path Traversal vulnerability

Chef Software's mixlib-archive versions 0.3.0 and older are vulnerable to a directory traversal attack allowing attackers to overwrite arbitrary files by using .. in tar archive entries...

Server side request forgery in gibbon

Gibbon v3.4.3 and below allows attackers to execute a Server-Side Request Forgery SSRF via a crafted URL. This issue has been resolved in version 3.4.4...