Loading...
Skip to main content
GeekWala

CVE-2016-11086 — Improper Certificate Validation in oauth — CVE...

HIGH

Improper Certificate Validation in oauth ruby gem

Published April 22, 2021Updated November 8, 2023Source: osv

Summary

lib/oauth/consumer.rb in the oauth-ruby gem through 0.5.4 for Ruby does not verify server X.509 certificates if a certificate bundle cannot be found, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information.

Advisory Timeline

  • First published April 22, 2021 (1999 days ago).
  • Last revised November 8, 2023 — 929 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Bundler
Update oauth to 0.5.5 or later
gem install oauth -v 0.5.5

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

Affected Packages (1)

Affects 1 ecosystem: rubygems (1).

PackageEcosystemAffectedFixed In
oauth
rubygems
0.1.1, 0.2.0, 0.2.1, 0.2.2 (+24 more)0.5.5

Vulnerability Classification

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

  • CWE-295
    Improper Certificate ValidationMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 7.4 score means for each attack dimension.

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

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

References

Frequently Asked Questions

What is CVE-2016-11086?
Improper Certificate Validation in oauth ruby gem This vulnerability has been assigned a severity rating of HIGH (CVSS score: 7.4/10).
How do I check if my project is affected by CVE-2016-11086?
CVE-2016-11086 affects oauth. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2016-11086 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
7.4

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-7359-3c6r-hfc2

Related CVEs

  • CVE-2026-94462
    HIGH

    Spree: Broken Access Control in `PATCH /api/v3/store/carts/:id/associate` (IDOR)

  • CVE-2026-54605
    HIGH

    OAuth: Cross-origin token-request redirects can expose signed request metadata

  • CVE-2026-77601
    HIGH

    OpenC3 COSMOS: Authenticated OS command injection via the `pypi_url` setting

More RubyGems advisories

Check if you're affected

Scan your dependencies to see if this vulnerability affects your projects.

Scan Your Dependencies