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Fencer Vulns
medium 4.3

CVE-2021-22251 json

Improper validation of invited users' email address in GitLab EE affecting all versions since 12.2 allowed projects to add members with ema…

published 2021-08-23 5 y ago modified 2026-09-08 2 mo ago also BIT-gitlab-2021-22251 , EUVD-2021-9397

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits
0
none known

Summary

Improper validation of invited users' email address in GitLab EE affecting all versions since 12.2 allowed projects to add members with email address domain that should be blocked by group settings

Patch / fix

  • bitnami gitlab 13.12.9, 14.0.7, 14.1.2
  • gitlab gitlab 13.12.9, 14.0.7, 14.1.2
  • gitlab gitlab_enterprise 13.12.9, 14.0.7, 14.1.2

Exploit prediction

0.82% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • gitlab.com https://gitlab.com/gitlab-org/gitlab/-/issues/14004 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected packages

ecosystem package affected fixed in
bitnami gitlab
>=12.2.0, <13.12.9
>=14.0.0, <14.0.7
>=14.1.0, <14.1.2
13.12.9
14.0.7
14.1.2

Affected products

  • GitLab GitLab

Classification

Weakness
Technology feeds

References

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: Enhance with deb and rpm package type records.