What is CVE-2019-5473?

CVE-2019-5473 is a high-severity vulnerability in GitLab, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 7.2/10. Published 2019-09-09.

How severe is CVE-2019-5473?

High severity. CVSS v3 base score is 7.2 out of 10.

Auth bypass in GitLab

CVE-2019-5473

An authentication issue was discovered in GitLab that allowed a bypass of email verification. This was addressed in GitLab 12.1.2 and 12.0.4.

Published 2019-09-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.017 (76.4th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

GitLab — versions 12.0.4, 12.1.2
Gitlab.com — versions Fixed versions 12.1.2 and 12.0.4

Weakness classification (CWE)

References

hackerone.com/reports/565883 (Exploit, Third Party Advisory, Issue Tracking)
gitlab.com/gitlab-org/gitlab-ee/issues/11643 (Exploit, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2019-5473?: CVE-2019-5473 is a high-severity vulnerability in GitLab, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 7.2/10. Published 2019-09-09.
How severe is CVE-2019-5473?: High severity. CVSS v3 base score is 7.2 out of 10.