No exploitation reportedFix available

CVE-2020-13347

Q: Is CVE-2020-13347 actively exploited?

Active exploitation of CVE-2020-13347 has not been confirmed. Its EPSS score was 2.3% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2020-13347?

CVE-2020-13347 has a CVSS v3 base score of 9.1 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2020-10-07
Fixed in13.4.1 · 13.3.2 · 13.2.4
WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A command injection vulnerability was discovered in Gitlab runner versions prior to 13.2.4, 13.3.2 and 13.4.1. When the runner is configured on a Windows system with a docker executor, which allows the attacker to run arbitrary commands on Windows host, via DOCKER_AUTH_CONFIG build variable.

Timeline

dates in UTC

2020-10-0714:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-13347?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-13347?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

GitLab

Branch	Affected	Fixed in	Source
13.4	≥ 13.4.0, < 13.4.1	13.4.1	NVD
13.3	≥ 13.3.0, < 13.3.2	13.3.2	NVD
13.2	≥ 12.0.0, < 13.2.4	13.2.4	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update GitLab to 13.4.1 · 13.3.2 · 13.2.4

Advisories and patches

gitlab.comVendor Advisory
gitlab.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CNACVSS 3.19.1read 2026-10-23
NVDCVSS 3.19.1read 2026-10-23
NVDCVSS 2.09read 2026-10-23
NVDweakness (CWE)CWE-22read 2026-10-23
FIRST EPSSEPSS score2.3 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Published: 2020-10-07
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2020-13347?

Is CVE-2020-13347 actively exploited?

Active exploitation of CVE-2020-13347 has not been confirmed. Its EPSS score was 2.3% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-13347?

CVE-2020-13347 has a CVSS v3 base score of 9.1 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

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