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CVE-2023-28755 — Vulnerability in uri — CVE Details

HIGH

Ruby URI component ReDoS issue

Published March 31, 2023Updated September 10, 2026Source: osv

Summary

A ReDoS issue was discovered in the URI component through 0.12.0 in Ruby through 3.2.1. The URI parser mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing strings to URI objects. The fixed versions are 0.12.1, 0.11.1, 0.10.2 and 0.10.0.1.

Advisory Timeline

  • First published March 31, 2023 (1291 days ago).
  • Last revised September 10, 2026 — 1259 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Bundler
Update uri to 0.11.1 or later
gem install uri -v 0.11.1
Bundler
Update uri to 0.10.2 or later
gem install uri -v 0.10.2
Bundler
Update uri to 0.10.0.1 or later
gem install uri -v 0.10.0.1
Bundler
Update uri to 0.12.1 or later
gem install uri -v 0.12.1

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (4)

Affects 1 ecosystem: rubygems (1).

PackageEcosystemAffectedFixed In
uri
rubygems
0.11.00.11.1
uri
rubygems
0.10.10.10.2
uri
rubygems
0.10.00.10.0.1
uri
rubygems
0.12.00.12.1

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 7.5 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Frequently Asked Questions

What is CVE-2023-28755?
Ruby URI component ReDoS issue This vulnerability has been assigned a severity rating of HIGH (CVSS score: 7.5/10).
How do I check if my project is affected by CVE-2023-28755?
CVE-2023-28755 affects uri. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2023-28755 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
7.5

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-hv5j-3h9f-99c2

Related CVEs

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