git-fastclone before 1.0.1 permits arbitrary shell command execution from .gitmodules
Published Nov 3, 2016
8.8
HIGHCVSS 3.1
EPSS 5.20%
Description
git-fastclone before 1.0.1 permits arbitrary shell command execution from .gitmodules. If an attacker can instruct a user to run a recursive clone from a repository they control, they can get a client to run an arbitrary shell command. Alternately, if an attacker can MITM an unencrypted git clone, they could exploit this. The ext command will be run if the repository is recursively cloned or if submodules are updated. This attack works when cloning both local and remote repositories.
Affected products
- Vendor n/a Product git-fastclone ruby gem All versions before 1.0.1 Defaultn/a
- Version git-fastclone ruby gem All versions before 1.0.1StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | git-fastclone ruby gem All versions before 1.0.1 | n/a |
|
- < 1.0.1
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:L/PR:N/UI:R/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:C/I:C/A:C
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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.20% (0.05198) | 92.22th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.20% (0.05198) | 91.38th | v5 (v2026.06.15) |
| Mar 17, 2025 | 3.10% (0.03096) | 85.90th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.93% (0.00928) | 83.66th | v3 (v2023.03.01) |
| Mar 7, 2024 | 0.93% (0.00928) | 82.56th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.93% (0.00928) | 80.55th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.58% (0.02578) | 82.08th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.58% (0.02578) | 80.28th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.58% (0.02578) | 61.77th | v2 (v2022.01.01) |
References (7)
- http://www.securityfocus.com/bid/81433 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://github.com/advisories/GHSA-8gg6-3r63-25m8 Advisory
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/git-fastclone/CVE-2015-8968.yml
- https://github.com/square/git-fastclone/pull/2 x_refsource_MISCPatchVendor Advisory
- https://hackerone.com/reports/104465 x_refsource_MISCExploitThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-8968
- https://web.archive.org/web/20200227213019/http://www.securityfocus.com/bid/81433
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/81433 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://github.com/advisories/GHSA-8gg6-3r63-25m8 | Advisory | |
| https://github.com/rubysec/ruby-advisory-db/blob/master/gems/git-fastclone/CVE-2015-8968.yml | ||
| https://github.com/square/git-fastclone/pull/2 | x_refsource_MISCPatchVendor Advisory | |
| https://hackerone.com/reports/104465 | x_refsource_MISCExploitThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2015-8968 | ||
| https://web.archive.org/web/20200227213019/http://www.securityfocus.com/bid/81433 |
Change history (0)
No recorded changes yet.