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CVE-2015-8968

24
FAUCET Score

CVE-2015-8968 is a critical vulnerability affecting git-fastclone before version 1.0.1, allowing arbitrary shell command execution via malicious .gitmodules files. An attacker can exploit this by tricking a user into recursively cloning a controlled repository or by performing a Man-in-the-Middle attack during an unencrypted clone. With a CVSS score of 8.8 (High), this vulnerability presents a significant risk of complete compromise (confidentiality, integrity, and availability) with low attack complexity, requiring user interaction. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.0.1CPE matchmatch criteria
cpe:2.3:a:squareup:git-fastclone:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
5.20%
Probability of exploitation in next 30 days
EPSS Percentile
91.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0520 is in the 91st percentile among its peer group of 14,848 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
rubygemspatch availablevia ghsa
Product: git-fastcloneFixed in: 1.0.1

Vendor Advisories (1)

rubygemsGHSA-8gg6-3r63-25m8high

git-fastclone permits arbitrary shell command execution from .gitmodules

Aug 15, 2018

References

github.com / square/git-fastclone/pull/2
PatchVendor Advisory
hackerone.com / reports/104465
ExploitThird Party Advisory
securityfocus.com / bid/81433
Third Party AdvisoryVDB Entry