Ecosystem
RubyGems
1,141 known vulnerabilities.
Most affected packages
1,129 results · Feed
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Medium 6.5
Spree API has Authenticated Insecure Direct Object Reference (IDOR) via Order Modification
Spree is an open source e-commerce solution built with Ruby on Rails. Prior to versions 4.10.2, 5.0.7, 5.1.9, and 5.2.5, an Authenticated Insecure Direct Object Reference (IDOR) vulnerability was identified that allows an authenticated user to retrieve other …
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Medium 4.6
Trix has a stored XSS vulnerability through its attachment attribute
### Impact The Trix editor, in versions prior to 2.1.16, is vulnerable to XSS attacks through attachment payloads. An attacker could inject malicious code into a data-trix-attachment attribute that, when rendered as HTML and clicked on, could execute arbitrar…
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Low 2.1
URI Credential Leakage Bypass over CVE-2025-27221
URI is a module providing classes to handle Uniform Resource Identifiers. In versions 0.12.4 and earlier (bundled in Ruby 3.2 series) 0.13.2 and earlier (bundled in Ruby 3.3 series), 1.0.3 and earlier (bundled in Ruby 3.4 series), when using the + operator to…
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High 7.8
httparty Has Potential SSRF Vulnerability That Leads to API Key Leakage
httparty is an API tool. In versions 0.23.2 and prior, httparty is vulnerable to SSRF. This issue can pose a risk of leaking API keys, and it can also allow third parties to issue requests to internal servers. This issue has been patched via commit 0529bcd.
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Medium 5.3
AWS SDK for Ruby's S3 Encryption Client has a Key Commitment Issue
Missing cryptographic key commitment in the AWS SDK for Ruby may allow a user with write access to the S3 bucket to introduce a new EDK that decrypts to different plaintext when the encrypted data key is stored in an "instruction file" instead of S3's metadat…
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Medium 6.5
ALTCHA Proof-of-Work Vulnerable to Challenge Splicing and Replay
ALTCHA is privacy-first software for captcha and bot protection. A cryptographic semantic binding flaw in ALTCHA libraries allows challenge payload splicing, which may enable replay attacks. The HMAC signature does not unambiguously bind challenge parameters …
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Critical 9.3
ruby-saml Libxml2 Canonicalization errors can bypass Digest/Signature validation
The ruby-saml library implements the client side of an SAML authorization. Versions up to and including 1.12.4, are vulnerable to authentication bypass through the libxml2 canonicalization process used by Nokogiri for document transformation, which allows an …
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Critical 9.3
ruby-saml has a SAML authentication bypass due to namespace handling (parser differential)
The ruby-saml library is for implementing the client side of a SAML authorization. ruby-saml versions up to and including 1.12.4 contain an authentication bypass vulnerability due to an incomplete fix for CVE-2025-25292. ReXML and Nokogiri parse XML different…
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High 7.6
ProsemirrorToHtml: Cross-Site Scripting vulnerability through unescaped HTML attribute values
ProsemirrorToHtml is a JSON converter which takes ProseMirror-compatible JSON and outputs HTML. In versions 0.2.0 and below, the `prosemirror_to_html` gem is vulnerable to Cross-Site Scripting (XSS) attacks through malicious HTML attribute values. While tag c…
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High 7.4
Rubygem-mqtt: rubygem-mqtt hostname validation
A flaw was found in Rubygem MQTT. By default, the package used to not have hostname validation, resulting in possible Man-in-the-Middle (MITM) attack.
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Low 2.7
Sinatra has ReDoS vulnerability in ETag header value generation
Sinatra is a domain-specific language for creating web applications in Ruby. In versions prior to 4.2.0, there is a denial of service vulnerability in the `If-Match` and `If-None-Match` header parsing component of Sinatra, if the `etag` method is used when co…
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High 7.5
Rack is vulnerable to a memory-exhaustion DoS through unbounded URL-encoded body parsing
Rack is a modular Ruby web server interface. Prior to versions 2.2.20, 3.1.18, and 3.2.3, `Rack::Request#POST` reads the entire request body into memory for `Content-Type: application/x-www-form-urlencoded`, calling `rack.input.read(nil)` without enforcing a …
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Medium 5.8
Rack has Possible Information Disclosure Vulnerability
Rack is a modular Ruby web server interface. Prior to versions 2.2.20, 3.1.18, and 3.2.3, a possible information disclosure vulnerability existed in `Rack::Sendfile` when running behind a proxy that supports `x-sendfile` headers (such as Nginx). Specially cra…
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High 7.5
Rack's multipart parser buffers unbounded per-part headers, enabling DoS (memory exhaustion)
Rack is a modular Ruby web server interface. In versions prior to 2.2.19, 3.1.17, and 3.2.2, `Rack::Multipart::Parser` can accumulate unbounded data when a multipart part’s header block never terminates with the required blank line (`CRLFCRLF`). The parser ke…
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High 7.5
Rack's multipart parser buffers large non‑file fields entirely in memory, enabling DoS (memory exhaustion)
Rack is a modular Ruby web server interface. In versions prior to 2.2.19, 3.1.17, and 3.2.2, ``Rack::Multipart::Parser` stores non-file form fields (parts without a `filename`) entirely in memory as Ruby `String` objects. A single large text field in a multip…
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High 7.5
Rack's unbounded multipart preamble buffering enables DoS (memory exhaustion)
Rack is a modular Ruby web server interface. In versions prior to 2.2.19, 3.1.17, and 3.2.2, `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…
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High 7.5
Rack QueryParser has an unsafe default allowing params_limit bypass via semicolon-separated parameters
Rack is a modular Ruby web server interface. Prior to version 2.2.18, Rack::QueryParser enforces its params_limit only for parameters separated by &, while still splitting on both & and ;. As a result, attackers could use ; separators to bypass the parameter …
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Low 1.2
REXML has a DoS condition when parsing malformed XML file
REXML is an XML toolkit for Ruby. The REXML gems from 3.3.3 to 3.4.1 has a DoS vulnerability when parsing XML containing multiple XML declarations. If you need to parse untrusted XMLs, you may be impacted to these vulnerabilities. The REXML gem 3.4.2 or later…
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Medium 4.2
Basecamp's Google Sign-In for Rails allowed redirects to protocol-relative URI
Basecamp's Google Sign-In adds Google sign-in to Rails applications. Prior to version 1.3.1, it is possible to redirect a user to another origin if the "proceed_to" value in the session store is set to a protocol-relative URL. Normally the value of this URL i…
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Medium 4.2
Basecamp's Google Sign-In for Rails allowed redirects to a malformed URL
Basecamp's Google Sign-In adds Google sign-in to Rails applications. Prior to version 1.3.0, it is possible to craft a malformed URL that passes the "same origin" check, resulting in the user being redirected to another origin. Rails applications configured t…
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Critical 9.3CVE-2011-10026 Public exploit
Spreecommerce < 0.50.x API RCE
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 search[instance_eval] parameter, which is dynamica…
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Low 2.7
Active Record logging vulnerable to ANSI escape injection
Active Record connects classes to relational database tables. Prior to versions 7.1.5.2, 7.2.2.2, and 8.0.2.1, 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…
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Critical 10.0CVE-2011-10019 Public exploit
Spreecommerce < 0.60.2 Search Parameter RCE
Spreecommerce versions prior to 0.60.2 contains a remote command execution vulnerability in its search functionality. The application fails to properly sanitize input passed via the search[send][] parameter, which is dynamically invoked using Ruby’s send meth…
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Critical 9.1CVE-2025-54887 Public exploit
jwe: Missing AES-GCM authentication tag validation in encrypted JWEs
jwe is a Ruby implementation of the RFC 7516 JSON Web Encryption (JWE) standard. In versions 1.1.0 and below, authentication tags of encrypted JWEs can be brute forced, which may result in loss of confidentiality for those JWEs and provide ways to craft arbit…
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Medium 6.9
Ruby SAML DOS vulnerability with large SAML response
The Ruby SAML library is for implementing the client side of a SAML authorization. In versions 1.18.0 and below, a denial-of-service vulnerability exists in ruby-saml even with the message_max_bytesize setting configured. The vulnerability occurs because the …
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Critical —
Nokogiri patches vendored libxml2 to resolve multiple CVEs
## Summary Nokogiri v1.18.9 patches the vendored libxml2 to address CVE-2025-6021, CVE-2025-6170, CVE-2025-49794, CVE-2025-49795, and CVE-2025-49796. ## Impact and severity ### CVE-2025-6021 A flaw was found in libxml2's xmlBuildQName function, where integer …
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Medium —
Measured is vulnerable to Path Traversal attacks during class initialization
### Impact A path traversal vulnerability exists where an attacker with access to manipulate inputs when initializing the `Measured::Cache::Json class` would be able to instruct the library to read arbitrary files. ### Patches Users should update to the lates…
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High 8.1
Job Iteration API is vulnerable to OS Command Injection attack through its CsvEnumerator class
The Job Iteration API is an an extension for ActiveJob that make jobs interruptible and resumable Versions prior to 1.11.0 have an arbitrary code execution vulnerability in the `CsvEnumerator` class. This vulnerability can be exploited by an attacker to execu…
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High 7.5
resolv vulnerable to DoS via insufficient DNS domain name length validation
The attack vector is a potential Denial of Service (DoS). The vulnerability is caused by an insufficient check on the length of a decompressed domain name within a DNS packet. An attacker can craft a malicious DNS packet containing a highly compressed domain …
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Medium 6.5
Ruby WEBrick read_header HTTP Request Smuggling Vulnerability
Ruby WEBrick read_header HTTP Request Smuggling Vulnerability. This vulnerability allows remote attackers to smuggle arbitrary HTTP requests on affected installations of Ruby WEBrick. This issue is exploitable when the product is deployed behind an HTTP proxy…
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Critical 9.1
OpenC3 COSMOS Vulnerable to Directory Traversal via /script-api/scripts/ endpoint
An issue in the /script-api/scripts/ endpoint of OpenC3 COSMOS before 6.1.0 allows attackers to execute a directory traversal.
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High 7.5
OpenC3 COSMOS Vulnerable to Directory Traversal via openc3-api/tables endpoint
An issue in the openc3-api/tables endpoint of OpenC3 COSMOS before 6.1.0 allows attackers to execute a directory traversal.
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Medium 6.6
ReDoS Vulnerability in Rack::Multipart handle_mime_head
Rack is a modular Ruby web server interface. Starting in version 3.1.0 and prior to version 3.1.16, there is a denial of service vulnerability in the Content-Disposition parsing component of Rack. This is very similar to the previous security issue CVE-2022-4…
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Medium 6.6
ejson2env has insufficient input sanitization
ejson2env allows users to decrypt EJSON secrets and export them as environment variables. Prior to version 2.0.8, the `ejson2env` tool has a vulnerability related to how it writes to `stdout`. Specifically, the tool is intended to write an export statement fo…
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Medium 4.2
Rack session gets restored after deletion
Rack::Session is a session management implementation for Rack. In versions starting from 2.0.0 to before 2.1.1, when using the Rack::Session::Pool middleware, and provided the attacker can acquire a session cookie (already a major issue), the session may be r…
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High 7.5
Unbounded-Parameter DoS in Rack::QueryParser
Rack is a modular Ruby web server interface. Prior to versions 2.2.14, 3.0.16, and 3.1.14, `Rack::QueryParser` parses query strings and `application/x-www-form-urlencoded` bodies into Ruby data structures without imposing any limit on the number of parameters…
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Medium 4.2
Rack session gets restored after deletion
Rack is a modular Ruby web server interface. Prior to version 2.2.14, when using the `Rack::Session::Pool` middleware, simultaneous rack requests can restore a deleted rack session, which allows the unauthenticated user to occupy that session. Rack session mi…
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Medium 5.7
JRuby-OpenSSL has hostname verification disabled by default
JRuby-OpenSSL is an add-on gem for JRuby that emulates the Ruby OpenSSL native library. Starting in JRuby-OpenSSL version 0.12.1 and prior to version 0.15.4 (corresponding to JRuby versions starting in 9.3.4.0 prior to 9.4.12.1 and 10.0.0.0 prior to 10.0.0.1)…
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Medium 6.0
net-imap rubygem vulnerable to possible DoS by memory exhaustion
Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.5.7, 0.4.20, 0.3.9, and 0.2.5, there is a possibility for denial of service by memory exhaustion when net-imap reads server responses. At any time w…
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Low 1.8
Publify Vulnerable To Cross-Site Scripting (XSS) Via Redirects Requiring User Interaction
Publify is a self hosted Web publishing platform on Rails. Prior to version 10.0.1 of Publify, corresponding to versions prior to 10.0.2 of the `publify_core` rubygem, publisher on a `publify` application is able to perform a cross-site scripting (XSS) attack…