CVE-2021-39943

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.87% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 56.2% of scored records. A rank, not a probability.

NVD base score

4.3 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2022-02-09 22:05Z4 YR AGO

Last updated

2024-08-04 02:20Z2 YR AGO

Reserved

2021-08-23

Assigning CNA

GitLab

Record state

PUBLISHED

Severity

Medium (CVSS 4.3)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Weaknesses

• CWE-863Incorrect AuthorizationClass
• CWE-639Authorization Bypass Through User-Controlled KeyBase

Data version

5.1

Document digest

b2582d61f9760e673f91c18e4e58b528ed5ac4e3e439a0c5003d73da163b23a8

• gitlab.comhttps://gitlab.com/gitlab-org/gitlab/-/issues/343604x_refsource_MISC
• hackerone.comhttps://hackerone.com/reports/1375393x_refsource_MISC
• gitlab.comhttps://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39943.jsonx_refsource_CONFIRM