# CVE-2023-28755: Ruby URI component ReDoS issue

Source: https://junglewise.ai/threats/cve-2023-28755-ruby-uri-component-redos-issue  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2023-03-31  
License: CC BY 4.0 with a link back

CVE-2023-28755 · Severity: low · CVSS 3.1 · Published 2023-03-31

Ruby URI component ReDoS issue

Technologies: [uri (RubyGems)](https://junglewise.ai/threats/technologies/uri). Vendors: [RubyGems](https://junglewise.ai/threats/vendors/rubygems).

## Quick answers

**Is CVE-2023-28755 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2023-28755 being exploited in the wild.

**How severe is CVE-2023-28755?** Low severity, with a CVSS score of 3.1, published 31 March 2023.

**Which products and versions are affected?** uri (RubyGems) ECOSYSTEM:introduced=0.12.0,fixed=0.12.1.

**Is there a fix for CVE-2023-28755?** Yes. uri (RubyGems): upgrade to 0.12.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2023-28755?** Check whether you run uri (RubyGems) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- uri (RubyGems): upgrade to 0.12.1 or later

  ```sh
  bundle update uri
  ```


## Affected products

- uri (RubyGems) ECOSYSTEM:introduced=0.12.0,fixed=0.12.1

## Identifiers

- CVE-2023-28755
- GHSA-hv5j-3h9f-99c2

## Related threats

- [URI Credential Leakage Bypass over](https://junglewise.ai/threats/cve-2025-61594-uri-credential-leakage-bypass-over)
- [URI allows for userinfo Leakage in URI#join, URI#merge, and URI#+](https://junglewise.ai/threats/cve-2025-27221-uri-allows-for-userinfo-leakage-in-uri-join-uri-merge-and-uri)
- [URI gem has ReDoS vulnerability](https://junglewise.ai/threats/cve-2023-36617-uri-gem-has-redos-vulnerability)