CVE-2015-8968

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 5.2%, top 8% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 5%CVSS: 8.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
46(Track)
EG Risk 46/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation5% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
5%
EPSS %ILE
92%
KEV
Not listed

Published

November 3, 2016

Last Modified

June 17, 2026

Advisory Details (3)

Auto-updated Jul 26, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
generic

HackerOne

https://hackerone.com/reports/104465
github_pr

Fixes the same issue as CVE-2015-7545.

Fix merged in square/git-fastclone PR #2 on 2015-12-12 — awaiting tagged release

https://github.com/square/git-fastclone/pull/2
generic
http://www.securityfocus.com/bid/81433

Affected Packages

(1 across 1 ecosystem)
RubyGems(1)
PackageVulnerable rangeFixed inDependents
git-fastclone0.0.0, 0.0.1, 0.0.3, 1.0.01.0.1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 37× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-25 14:13 UTCEPSS rescore
  2. 2026-07-24 14:13 UTCEPSS rescore
  3. 2026-07-23 14:14 UTCEPSS rescore
  4. 2026-07-23 01:20 UTCEG score recompute
  5. 2026-07-23 00:21 UTCEG score recompute
  6. 2026-07-22 22:00 UTCEG score recompute
  7. 2026-07-22 14:04 UTCEPSS rescore
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  1. 2026-07-08 15:10 UTCEPSS rescore
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  27. 2026-06-18 17:50 UTCEPSS rescore
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  60. 2026-05-24 16:43 UTCEPSS rescore
  61. 2026-05-22 21:15 UTCEPSS rescore
  62. 2026-05-22 18:04 UTCEG score recompute
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  69. 2026-05-18 21:30 UTCEPSS rescore
  70. 2026-05-18 21:30 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2015-8968?
CVE-2015-8968 is a high vulnerability published on November 3, 2016. 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,…
When was CVE-2015-8968 disclosed?
CVE-2015-8968 was first published in the National Vulnerability Database on November 3, 2016, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2015-8968 actively exploited?
CVE-2015-8968 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5% probability of exploitation in the next 30 days, which ranks it in the top 8.4% of all scored CVEs.
What is the CVSS score of CVE-2015-8968?
CVE-2015-8968 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2015-8968?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-8968, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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