CVE-2015-8969

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2016-11-03 · updated 2026-06-17
Weakness: CWE-77

Description

git-fastclone before 1.0.5 passes user modifiable strings directly to a shell command. An attacker can execute malicious commands by modifying the strings that are passed as arguments to "cd " and "git clone " commands in the library.

Affected products

git-fastclone ruby gem All versions before 1.0.1: before 1.0.5 — fixed in 1.0.5

How to fix

Upgrade to a fixed version: git-fastclone ruby gem All versions before 1.0.1 1.0.5. Check the vendor advisory for mitigations.

References

http://www.securityfocus.com/bid/81433
https://github.com/square/git-fastclone/pull/5
https://hackerone.com/reports/105190
http://www.securityfocus.com/bid/81433
https://github.com/square/git-fastclone/pull/5
https://hackerone.com/reports/105190

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