Answer in brief
CVE-2025-27610 records a High severity (CVSS 7.5) vulnerability in Local File Inclusion in Rack::Static. The current sources do not mark it as known exploited. The current feed maps rack (rubygems), rack (rubygems), rack (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 7.5. 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 rack (rubygems), rack (rubygems), rack (rubygems). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| rackrubygems | >=0 <2.2.13 | 2.2.13 |
| rackrubygems | >=3.0 <3.0.14 | 3.0.14 |
| rackrubygems | >=3.1 <3.1.12 | 3.1.12 |
Published upstream
Mar 10, 2025
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
## Summary `Rack::Static` can serve files under the specified `root:` even if `urls:` are provided, which may expose other files under the specified `root:` unexpectedly. ## Details The vulnerability occurs because `Rack::Static` does not properly sanitize user-supplied paths before serving files. Specifically, encoded path traversal sequences are not correctly validated, allowing attackers to access files outside the designated static file directory. ## Impact By exploiting this vulnerability, an attacker can gain access to all files under the specified `root:` directory, provided they are able to determine then path of the file. ## Mitigation - Update to the latest version of Rack, or - Remove usage of `Rack::Static`, or - Ensure that `root:` points at a directory path which only contains files which should be accessed publicly. It is likely that a CDN or similar static file server would also mitigate the issue.
Quoted source text, attributed separately from HOL analysis.