What is CVE-2020-13261?

CVE-2020-13261 is a medium-severity vulnerability in GitLab, classified under Information Disclosure. CVSS score: 5.3/10. Published 2020-06-19.

How severe is CVE-2020-13261?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Information disclosure in GitLab

CVE-2020-13261

Amazon EKS credentials disclosure in GitLab CE/EE 12.6 and later through 13.0.1 allows other administrators to view Amazon EKS credentials via HTML source code

Vulnerability class: Information Disclosure

Published 2020-06-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.009 (57.6th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

GitLab — versions >=12.10, <12.10.7, >=12.6, <12.9.8, 13.0.0

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

gitlab.com/gitlab-org/gitlab/-/issues/199242 (Broken Link)
hackerone.com/reports/784130 (Permissions Required)
gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13261.json (Vendor Advisory)

Frequently asked questions

What is CVE-2020-13261?: CVE-2020-13261 is a medium-severity vulnerability in GitLab, classified under Information Disclosure. CVSS score: 5.3/10. Published 2020-06-19.
How severe is CVE-2020-13261?: Medium severity. CVSS v3 base score is 5.3 out of 10.