Auth bypass in Gitlab

CVE-2020-13277

An authorization issue in the mirroring logic allowed read access to private repositories in GitLab CE/EE 10.6 and later through 13.0.5

Vulnerability class: Broken Access Control

EPSS: 0.018 (76.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N.

Affected products

  • Gitlab — versions >=10.6, <12.9.10, >=12.10, <12.10.11, >=13.0, <13.0.6

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-13277?
CVE-2020-13277 is a medium-severity vulnerability in Gitlab, classified under Incorrect Authorization. CVSS score: 6.3/10. Published 2020-06-19.
How severe is CVE-2020-13277?
Medium severity. CVSS v3 base score is 6.3 out of 10.
Is CVE-2020-13277 known to be exploited?
8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.