Auth bypass in Gitlab

CVE-2021-22256

Improper authorization in GitLab CE/EE affecting all versions since 12.6 allowed guest users to create issues for Sentry errors and track their status

Vulnerability class: Broken Access Control

EPSS: 0.007 (50.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

  • Gitlab — versions >=12.6, <13.12.9, >=14.0, <14.0.7, >=14.1, <14.1.2

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-22256?
CVE-2021-22256 is a medium-severity vulnerability in Gitlab, classified under Incorrect Authorization. CVSS score: 5.4/10. Published 2021-08-25.
How severe is CVE-2021-22256?
Medium severity. CVSS v3 base score is 5.4 out of 10.