How severe is CVE-2017-12426?

CVE-2017-12426 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-12426 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-12426?

CVE-2017-12426 primarily affects Gitlab. In total, 96 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-12426?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2017-12426 published?

CVE-2017-12426 was published on 2017-08-14 and last updated on 2026-06-17.

CVE-2017-12426

CVE-2017-12426 is a high-severity vulnerability in Gitlab with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 4% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Gitlab
Published: 2017-08-14
Last modified: 2026-06-17

Description

GitLab Community Edition (CE) and Enterprise Edition (EE) before 8.17.8, 9.0.x before 9.0.13, 9.1.x before 9.1.10, 9.2.x before 9.2.10, 9.3.x before 9.3.10, and 9.4.x before 9.4.4 might allow remote attackers to execute arbitrary code via a crafted SSH URL in a project import.

Frequently asked questions

What is CVE-2017-12426?: GitLab Community Edition (CE) and Enterprise Edition (EE) before 8.17.8, 9.0.x before 9.0.13, 9.1.x before 9.1.10, 9.2.x before 9.2.10, 9.3.x before 9.3.10, and 9.4.x before 9.4.4 might allow remote attackers to execute arbitrary code via a crafted SSH URL in a project import.
How severe is CVE-2017-12426?: CVE-2017-12426 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-12426 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-12426?: CVE-2017-12426 primarily affects Gitlab. In total, 96 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-12426?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2017-12426 published?: CVE-2017-12426 was published on 2017-08-14 and last updated on 2026-06-17.

References

Affected products (96)

cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.0:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.0:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.1:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.1:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.2:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.2:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.3:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.3:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.4:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.4:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.5:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.5:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.6:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.6:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.7:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.7:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.8:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.8:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.9:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.9:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.10:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.10:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.11:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.11:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.12:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:9.0.12:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:9.1.0:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:9.1.0:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:9.1.1:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:9.1.1:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:9.1.2:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:9.1.2:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:9.1.3:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:9.1.3:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:9.1.4:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:9.1.4:*:*:*:enterprise:*:*:*
cpe:2.3:a:gitlab:gitlab:9.1.5:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:9.1.5:*:*:*:enterprise:*:*:*

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