Answer in brief
CVE-2023-28756 records a High severity (CVSS 7.5) vulnerability in Ruby Time component ReDoS issue. The current sources do not mark it as known exploited. The current feed maps time (rubygems), time (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 time (rubygems), time (rubygems). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| timerubygems | >=0.2.0 <0.2.2 | 0.2.2 |
| timerubygems | >=0 <0.1.1 | 0.1.1 |
Published upstream
Mar 31, 2023
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
A ReDoS issue was discovered in the Time component through 0.2.1 in Ruby through 3.2.1. The Time parser mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing strings to Time objects. The fixed versions are 0.1.1 and 0.2.2.
Quoted source text, attributed separately from HOL analysis.