CVE-2021-39937
HIGH
8.8
CVSS Score
Published: December 13, 2021 at 03:47 PM UTC
Updated: June 17, 2026 at 04:04 AM UTC
1 product affected across 1 vendorGitLab
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Severity
HIGH8.8
Exploit prediction
EPSS 0.8%
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
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 14.3.6v < 14.4.4v < 14.5.214.4.0 ≤ v < 14.4.414.5.0 ≤ v < 14.5.2
Affected range stops below 14.3.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.4.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.5.2, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (2)
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39937.jsonx_refsource_MISCBroken Link
Source: [email protected]
https://gitlab.com/gitlab-org/gitlab/-/issues/336802CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-269
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