Vulnerability Monitor

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CVE-2021-39911

An improper access control flaw in all versions of GitLab CE/EE starting from 13.9 before 14.2.6, all versions starting from 14.3 before 14.3.4, and all versions starting from 14.4 before 14.4.1 exposes private email address of Issue and Merge Requests assignee to Webhook data consumers

Security Impact Summary

This vulnerability carries a LOW severity rating with a CVSS v3.1 score of 1.7, but requires specific conditions to be met though user interaction is required requiring only low-level privileges . The vulnerability impacts limited data confidentiality, for affected systems. Impacting 1 product from gitlab organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2021, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2021-11-05T00:15:11.210

Last Modified

2024-11-21T06:20:32.377

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 1.7 (LOW)

CVSSv2 Vector

AV:N/AC:L/Au:S/C:P/I:N/A:N

Access Vector: NETWORK
Access Complexity: LOW
Authentication: SINGLE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

8.0

Impact Score

2.9

Weaknesses

Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	gitlab	gitlab	< 14.2.6	Yes
Application	gitlab	gitlab	< 14.2.6	Yes
Application	gitlab	gitlab	< 14.3.4	Yes
Application	gitlab	gitlab	< 14.3.4	Yes
Application	gitlab	gitlab	14.4.0	Yes
Application	gitlab	gitlab	14.4.0	Yes

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39911.json Vendor Advisory ([email protected])
https://gitlab.com/gitlab-org/gitlab/-/issues/297470 Broken Link ([email protected])
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39911.json Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://gitlab.com/gitlab-org/gitlab/-/issues/297470 Broken Link (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For gitlab's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.