What is CVE-2020-13284?

CVE-2020-13284 is a medium-severity vulnerability in GitLab, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2020-09-14.

How severe is CVE-2020-13284?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in GitLab

CVE-2020-13284

A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. API Authorization Using Outdated CI Job Token

Vulnerability class: Broken Access Control

Published 2020-09-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.011 (64.2th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 64.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

GitLab — versions >=11.3, <13.1.10, >=13.2, <13.2.8, >=13.3, <13.3.4

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

gitlab.com/gitlab-org/gitlab/-/issues/221040 (Broken Link)
gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13284.json (Vendor Advisory)

Frequently asked questions

What is CVE-2020-13284?: CVE-2020-13284 is a medium-severity vulnerability in GitLab, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2020-09-14.
How severe is CVE-2020-13284?: Medium severity. CVSS v3 base score is 6.5 out of 10.