CVE-2015-8969 json
Git-fastclone passes user modifiable strings directly to a shell command
published 2016-11-03 10 y ago modified 2026-06-17 4 mo ago also GHSA-mf6w-45cf-qhmp , EUVD-2018-0413
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 4.8%
- EPSS 4.8% chance of exploitation in 30 days, percentile 92%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- rubygems git-fastclone 1.0.5
- squareup git-fastclone 1.0.5
- github.com/square/git-fastclone#5 pull request
Exploit prediction
4.80% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- hackerone.com https://hackerone.com/reports/105190 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| rubygems | git-fastclone | <1.0.5 |
1.0.5 |
Affected products
- n/a git-fastclone ruby gem All versions before 1.0.5
Classification
- Weakness
-
- CWE-77 Improper Neutralization of Special Elements used in a Command
References
-
github.com
/square/git-fastclone/pull/5
web, vendor-advisory
-
hackerone.com
/reports/105190
web, exploit, third-party-advisory
-
securityfocus.com
/bid/81433
vdb-entry, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2015-8969
advisory
-
github.com
/rubysec/ruby-advisory-db/blob/master/gems/git-fastclone/CVE-2015-8969.yml
web
-
github.com
/square/git-fastclone
package
-
web.archive.org
/web/20161108132238/http://www.securityfocus.com/bid/81433
web
Sources
- CVE List CVE-2015-8969
- GitHub Advisory GHSA-mf6w-45cf-qhmp
- NVD CVE-2015-8969
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.