Loading...
Skip to main content
GeekWala

CVE-2020-36599 — Vulnerability in omniauth — CVE Details

CRITICAL

OmniAuth's `lib/omniauth/failure_endpoint.rb` does not escape `message_key` value

Published August 19, 2022Updated November 8, 2023Source: osv

Summary

lib/omniauth/failure_endpoint.rb in OmniAuth before 1.9.2 (and before 2.0) does not escape the message_key value.

Advisory Timeline

  • First published August 19, 2022 (1516 days ago).
  • Last revised November 8, 2023 — 446 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Bundler
Update omniauth to 2.0.0 or later
gem install omniauth -v 2.0.0
Bundler
Update omniauth to 1.9.2 or later
gem install omniauth -v 1.9.2

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

Affected Packages (2)

Affects 1 ecosystem: rubygems (1).

PackageEcosystemAffectedFixed In
omniauth
rubygems
2.0.0.pre.rc12.0.0
omniauth
rubygems
0.0.1, 0.0.3, 0.0.4, 0.0.5 (+54 more)1.9.2

Vulnerability Classification

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

  • CWE-116
    Improper Encoding or EscapingMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

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

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

References

Frequently Asked Questions

What is CVE-2020-36599?
OmniAuth's `lib/omniauth/failure_endpoint.rb` does not escape `message_key` value This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2020-36599?
CVE-2020-36599 affects omniauth. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2020-36599 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-pm55-qfxr-h247

Related CVEs

  • CVE-2026-55107
    CRITICAL

    kobako Sandbox Escape: guest eval reaches host RCE via method_missing → public_send (any bound Service)

  • CVE-2026-77602
    CRITICAL

    OpenC3 COSMOS: Authenticated remote code execution via the user-writable config overlay (table definitions, cmd/tlm definitions, and script suites)

  • CVE-2017-18076
    HIGH

    Omniauth allows POST parameters to be stored in session

  • CVE-2015-9284
    HIGH

    OmniAuth Ruby gem Cross-site Request Forgery in request phase

More RubyGems advisories

Check if you're affected

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

Scan Your Dependencies