lib/omniauth/failure_endpoint.rb in OmniAuth before 1.9.2 (and before 2.0) does not escape the message_key value.
Priority MEDIUM 44CWE-116Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
lib/omniauth/failure_endpoint.rb in OmniAuth before 1.9.2 (and before 2.0) does not escape the message_key value.
Why it matters now
EPSS 0.01198 68th percentileScored 2026-11-07
Fix Fixed omniauth (RubyGems): 1.9.2, 2.0.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | omniauth (RubyGems) | before 1.9.2 | 1.9.2 | Patch available | GHSA-pm55-qfxr-h247 |
| — | omniauth (RubyGems) | 2.0.0.pre.rc1 to before 2.0.0 | 2.0.0 | Patch available | GHSA-pm55-qfxr-h247 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- omniauth (RubyGems) Vendor— Affected before 1.9.2 Fixed in 1.9.2 Patch available GHSA-pm55-qfxr-h247
- omniauth (RubyGems) Vendor— Affected 2.0.0.pre.rc1 to before 2.0.0 Fixed in 2.0.0 Patch available GHSA-pm55-qfxr-h247
Remediation
- Fix · GHSA-pm55-qfxr-h247 omniauth (RubyGems) Fixed in 1.9.2 Advisory →
- Fix · GHSA-pm55-qfxr-h247 omniauth (RubyGems) Fixed in 2.0.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-36599
- 2026-10-03 Alias added: GHSA-pm55-qfxr-h247
References
More Omniauth vulnerabilities
- TI-2015-07661 Cross-site request forgery in omniauth ruby gem CVSS 3.1HIGH 8.8
- TI-2017-13284 In strategy.rb in OmniAuth before 1.3.2, the authenticity_token value is improperly… CVSS 3.1HIGH 7.5
Sources
- CVE-2020-36599 · CVE Program
- CVE-2020-36599 · NVD
- FIRST EPSS
- GHSA-pm55-qfxr-h247 · GitHub Advisory Database · CC BY 4.0
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