Command injection in git-fastclone ruby gem All versions before 1.0.1
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-77.
Summary
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.
Why it matters now
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 |
|---|---|---|---|---|---|
| — | git-fastclone ruby gem All versions before 1.0.1 | git-fastclone ruby gem All versions before 1.0.1 | — | No fix listed | CNA |
| — | git-fastclone (RubyGems) | before 1.0.1 | 1.0.1 | Patch available | GHSA-8gg6-3r63-25m8 |
- git-fastclone ruby gem All versions before 1.0.1 Vendor— Affected git-fastclone ruby gem All versions before 1.0.1 Fixed in — No fix listed CNA
- git-fastclone (RubyGems) Vendor— Affected before 1.0.1 Fixed in 1.0.1 Patch available GHSA-8gg6-3r63-25m8
Remediation
- Fix · GHSA-8gg6-3r63-25m8 git-fastclone (RubyGems) Fixed in 1.0.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2015-8968
- 2026-10-03 Alias added: GHSA-8gg6-3r63-25m8
References
Exploit 1
More Squareup Git-fastclone vulnerabilities
- TI-2015-07382 Command injection in git-fastclone ruby gem All versions before 1.0.5 CVSS 3.1CRITICAL 9.8
Sources
- CVE-2015-8968 · CVE Program
- CVE-2015-8968 · NVD
- FIRST EPSS
- GHSA-8gg6-3r63-25m8 · GitHub Advisory Database · CC BY 4.0
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