Improper access control in GitLab EE versions 13.11.6, 13.12.6, and 14.0.2 allows users to be created via single sign on despite user cap b…

published 2021-08-05 5 y ago modified 2026-09-10 59 d ago also BIT-gitlab-2021-22240 , EUVD-2021-9386

cvss: 4.2; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 51%
public exploits: 0; none known

Improper access control in GitLab EE versions 13.11.6, 13.12.6, and 14.0.2 allows users to be created via single sign on despite user cap being enabled

Patch / fix

fixed in 3

bitnami gitlab 13.11.6, 13.12.6, 14.0.2
gitlab gitlab 13.11.6, 13.12.6, 14.0.2
gitlab gitlab_enterprise 13.11.6, 13.12.6, 14.0.2

Exploit prediction

0.66% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.2	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
NVD	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
NVD	2.0	4.0	AV:N/AC:L/Au:S/C:N/I:P/A:N
OSV	3.1	4.2	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
bitnami	gitlab	>=13.7.0, <13.11.6 >=13.12.0, <13.12.6 >=14.0.0, <14.0.2	13.11.6 13.12.6 14.0.2

Affected products

GitLab GitLab EE

Classification

Weakness

CWE-863 Incorrect Authorization

Technology feeds

GitLab rss critical rss

References

gitlab.com /gitlab-org/cves/-/blob/master/2021/CVE-2021-22240.json
vendor-advisory, advisory
gitlab.com /gitlab-org/gitlab/-/issues/327641
broken-link, web
hackerone.com /reports/1166566
permissions-required, third-party-advisory, advisory
nvd.nist.gov /vuln/detail/CVE-2021-22240
web

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: add affected deb and rpm records.

Summary