What is CVE-2019-5463?

CVE-2019-5463 is a medium-severity vulnerability in GitLab, classified under Information Disclosure. CVSS score: 5.3/10. Published 2019-09-09.

How severe is CVE-2019-5463?

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

Is CVE-2019-5463 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in GitLab

CVE-2019-5463

An authorization issue was discovered in the GitLab CE/EE CI badge images endpoint which could result in disclosure of the build status. This vulnerability was addressed in 12.1.2, 12.0.4, and 11.11.6.

Vulnerability class: Information Disclosure

Published 2019-09-09 · 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: 0.019 (79.0th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000

Affected products

GitLab
GitLab Ce/ee — versions Affects all previous GitLab CE/EE versions. Fixed in 12.1.2, 12.0.4, and 11.11.6

Weakness classification (CWE)

Public proof-of-concept exploits

References

hackerone.com/reports/477222 (Exploit, Third Party Advisory)
gitlab.com/gitlab-org/gitlab-ce/issues/56407 (Third Party Advisory)

Frequently asked questions

What is CVE-2019-5463?: CVE-2019-5463 is a medium-severity vulnerability in GitLab, classified under Information Disclosure. CVSS score: 5.3/10. Published 2019-09-09.
How severe is CVE-2019-5463?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2019-5463 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.