High severity · published Dec 13, 2021
CVE-2021-39937
A collision in access memoization logic in all versions of GitLab CE/EE before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before…
8.8
CVSS
0.8%
EPSS
No
On KEV
Description
A collision in access memoization logic in all versions of GitLab CE/EE before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, leads to potential elevated privileges in groups and projects under rare circumstances
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 57% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GI
GitLab · GitLab
before 14.3.6; before 14.3.6; 14.4.0 before 14.4.4; 14.4.0 before 14.4.4; 14.5.0 before 14.5.2; 14.5.0 before 14.5.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-39937
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-39937
Third Party Advisory
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39937.json
Broken Link
https://gitlab.com/gitlab-org/gitlab/-/issues/336802
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