Answer in brief
CVE-2024-27281 records a Medium severity (CVSS 4.5) vulnerability in RDoc RCE vulnerability with .rdoc_options. The current sources do not mark it as known exploited. The current feed maps rdoc (rubygems), rdoc (rubygems), rdoc (rubygems), rdoc (rubygems). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 4.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps rdoc (rubygems), rdoc (rubygems), rdoc (rubygems), rdoc (rubygems). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| rdocrubygems | >=6.3.3 <6.3.4.1 | 6.3.4.1 |
| rdocrubygems | >=6.4.0 <6.4.1.1 | 6.4.1.1 |
| rdocrubygems | >=6.5.0 <6.5.1.1 | 6.5.1.1 |
| rdocrubygems | >=6.6.0 <6.6.3.1 | 6.6.3.1 |
Published upstream
Mar 25, 2024
Evidence: source:osv:source_dates:source-dates:recordSource modified
Sep 10, 2026
Evidence: source:osv:source_dates:source-dates:recordFirst seen by HOL
Aug 7, 2026
An issue was discovered in RDoc 6.3.3 through 6.6.2, as distributed in Ruby 3.x through 3.3.0. When parsing `.rdoc_options` (used for configuration in RDoc) as a YAML file, object injection and resultant remote code execution are possible because there are no restrictions on the classes that can be restored. When loading the documentation cache, object injection and resultant remote code execution are also possible if there were a crafted cache. We recommend to update the RDoc gem to version 6.6.3.1 or later. In order to ensure compatibility with bundled version in older Ruby series, you may update as follows instead: * For Ruby 3.0 users: Update to `rdoc` 6.3.4.1 * For Ruby 3.1 users: Update to `rdoc` 6.4.1.1 * For Ruby 3.2 users: Update to `rdoc` 6.5.1.1 You can use `gem update rdoc` to update it. If you are using bundler, please add `gem "rdoc", ">= 6.6.3.1"` to your `Gemfile`. Note: 6.3.4, 6.4.1, 6.5.1 and 6.6.3 have a incorrect fix. We recommend to upgrade 6.3.4.1, 6.4.1.1, 6.5.1.1 and 6.6.3.1 instead of them.
Quoted source text, attributed separately from HOL analysis.