How severe is CVE-2021-39911?

CVE-2021-39911 has a CVSS 3.x base score of 1.7, rated low severity. It is exploitable over physical access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-39911 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-39911?

CVE-2021-39911 primarily affects Gitlab. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-39911?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-39911 published?

CVE-2021-39911 was published on 2021-11-05 and last updated on 2026-06-17.

CVE-2021-39911

CVE-2021-39911 is a low-severity vulnerability in Gitlab with a CVSS 3.x base score of 1.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Low (CVSS 3.x base score 1.7)
CVSS v2: 4.0
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Gitlab
Published: 2021-11-05
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is 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
How severe is CVE-2021-39911?: CVE-2021-39911 has a CVSS 3.x base score of 1.7, rated low severity. It is exploitable over physical access with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-39911 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-39911?: CVE-2021-39911 primarily affects Gitlab. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-39911?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-39911 published?: CVE-2021-39911 was published on 2021-11-05 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*

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