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
Published Sep 24, 2020
7.4
HIGHCVSS 3.1
EPSS 0.75%
Description
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.
Affected products
No data.
- ≤ 0.5.4
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.75% (0.00746) | 53.13th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.74% (0.00737) | 49.50th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.14% (0.00143) | 31.94th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.09% (0.00088) | 39.38th | v3 (v2023.03.01) |
| Jan 28, 2024 | 0.09% (0.00088) | 37.01th | v3 (v2023.03.01) |
| May 8, 2023 | 0.08% (0.00085) | 34.61th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.10% (0.00105) | 41.35th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
References (6)
- https://github.com/advisories/GHSA-7359-3c6r-hfc2 Advisory
- https://github.com/oauth-xx/oauth-ruby/commit/eb5b00a91d4ef0899082fdba929c34ccad6d4ccb
- https://github.com/oauth-xx/oauth-ruby/issues/137 x_refsource_MISCExploitThird Party Advisory
- https://github.com/oauth-xx/oauth-ruby/releases/tag/v0.5.5
- https://nvd.nist.gov/vuln/detail/CVE-2016-11086
- https://rubygems.org/gems/oauth
Change history (0)
No recorded changes yet.