The Management Console in GitHub Enterprise 2.8.x before 2.8.7 has a deserialization issue that allows unauthenticated remote attackers to execute arbitrary code
Published Mar 28, 2019
9.8
CRITICALCVSS 3.0
EPSS 21.24%
Description
The Management Console in GitHub Enterprise 2.8.x before 2.8.7 has a deserialization issue that allows unauthenticated remote attackers to execute arbitrary code. This occurs because the enterprise session secret is always the same, and can be found in the product's source code. By sending a crafted cookie signed with this secret, one can call Marshal.load with arbitrary data, which is a problem because the Marshal data format allows Ruby objects.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:P/I:P/A:P
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 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (27 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 21.24% (0.21238) | 97.53th | v5 (v2026.06.15) |
| Sep 22, 2026 | 21.24% (0.21238) | 97.48th | v5 (v2026.06.15) |
| Sep 21, 2026 | 18.92% (0.18916) | 97.23th | v5 (v2026.06.15) |
| Sep 6, 2026 | 21.24% (0.21238) | 97.43th | v5 (v2026.06.15) |
| Sep 5, 2026 | 18.92% (0.18916) | 97.17th | v5 (v2026.06.15) |
| Aug 30, 2026 | 21.24% (0.21238) | 97.42th | v5 (v2026.06.15) |
| Aug 28, 2026 | 18.92% (0.18916) | 97.16th | v5 (v2026.06.15) |
| Aug 24, 2026 | 21.24% (0.21238) | 97.40th | v5 (v2026.06.15) |
| Aug 23, 2026 | 18.92% (0.18916) | 97.15th | v5 (v2026.06.15) |
| Jun 15, 2026 | 21.40% (0.21402) | 97.28th | v5 (v2026.06.15) |
| May 30, 2026 | 33.44% (0.33438) | 97.01th | v4 (v2025.03.14) |
| Feb 18, 2026 | 40.71% (0.40705) | 97.27th | v4 (v2025.03.14) |
| Nov 6, 2025 | 63.00% (0.63003) | 98.30th | v4 (v2025.03.14) |
| Oct 8, 2025 | 66.00% (0.66001) | 98.42th | v4 (v2025.03.14) |
| Mar 30, 2025 | 11.71% (0.11711) | 93.05th | v4 (v2025.03.14) |
| Mar 29, 2025 | 30.25% (0.30247) | 94.75th | v4 (v2025.03.14) |
| Mar 17, 2025 | 11.71% (0.11711) | 93.13th | v4 (v2025.03.14) |
| Jul 20, 2024 | 1.06% (0.01064) | 84.33th | v3 (v2023.03.01) |
| Apr 10, 2024 | 1.06% (0.01064) | 83.91th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.06% (0.01064) | 81.90th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.98% (0.01978) | 79.27th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.98% (0.01978) | 77.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.98% (0.01978) | 56.34th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.37% (0.01374) | 32.00th | v1 |
| Jan 6, 2022 | 1.37% (0.01374) | 31.26th | v1 |
| Sep 1, 2021 | 1.37% (0.01374) | 70.79th | v1 |
| Apr 14, 2021 | 1.37% (0.01374) | 0.00th | v1 |
References (2)
- https://enterprise.github.com/releases/2.8.7/notes x_refsource_MISCVendor Advisory
- https://www.exablue.de/blog/2017-03-15-github-enterprise-remote-code-execution.html x_refsource_MISCExploitThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://enterprise.github.com/releases/2.8.7/notes | x_refsource_MISCVendor Advisory | |
| https://www.exablue.de/blog/2017-03-15-github-enterprise-remote-code-execution.html | x_refsource_MISCExploitThird Party Advisory |
Change history (0)
No recorded changes yet.