What is CVE-2021-22171?

CVE-2021-22171 is a high-severity vulnerability in Gitlab, classified under Improper Authentication. CVSS score: 7.3/10. Published 2021-01-15.

How severe is CVE-2021-22171?

High severity. CVSS v3 base score is 7.3 out of 10.

Auth bypass in Gitlab

CVE-2021-22171

Insufficient validation of authentication parameters in GitLab Pages for GitLab 11.5+ allows an attacker to steal a victim's API token if they click on a maliciously crafted link

Vulnerability class: Broken Authentication

EPSS: 0.013 (68.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N.

Affected products

Gitlab — versions >=11.5.0, <13.5.6, >=13.6.0, <13.6.4, >=13.7.0, <13.7.2

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

cve@gitlab.com (x_refsource_MISC, Broken Link)
cve@gitlab.com (Permissions Required, Third Party Advisory, x_refsource_MISC)
cve@gitlab.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2021-22171?: CVE-2021-22171 is a high-severity vulnerability in Gitlab, classified under Improper Authentication. CVSS score: 7.3/10. Published 2021-01-15.
How severe is CVE-2021-22171?: High severity. CVSS v3 base score is 7.3 out of 10.