CVE-2015-8968
git-fastclone before 1.0.1 permits arbitrary shell command execution from .gitmodules. If an attacker can instruct a user to run a…
- 8.8HighCVSS base score
- 5.2%Exploitation in 30 daysEPSS · top 7.5% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By hackerone
- 1 day later
· 1 day later
Published
- 8 years later
· 8 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 5.2% · top 7.5% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Affected products
git-fastclone ruby gem All versions before 1.0.1
- affected git-fastclone ruby gem All versions before 1.0.1
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- RubyGemsgit-fastcloneGHSA-8gg6-3r63-25m8 (opens in a new tab)
References
3
- https://hackerone.com/reports/104465 (opens in a new tab)x_refsource_MISCx_transferred
- 81433 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://github.com/square/git-fastclone/pull/2 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2018-0382 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-8gg6-3r63-25m8 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2015-8968)Record last updated .