Is CVE-2021-39911 in the CISA KEV catalog?

No. CVE-2021-39911 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-39911?

CVE-2021-39911 has a CVSS v3 base score of 1.7 (LOW).

What is the EPSS score for CVE-2021-39911?

CVE-2021-39911 has an EPSS score of 0.67% (48th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-39911?

Upgrade gitlab on debian unstable to 15.10.8+ds1-2 or later.

CVE & CISA-KEV Catalog

CVE-2021-39911

LOW

1.7

CVSS v3

NVD

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

How to fix

Remediation Available

gitlabDebian

Fixed in:15.10.8+ds1-2CVE-2021-39911

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorPhysical

Attack ComplexityHigh

Privileges RequiredLow

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.67%probability of exploitation in 30 days

48thpercentile

Moderate risk: more likely to be exploited than 48% of all known CVEs.

References

Vendor Advisory1

gitlab.com

Other references1

gitlab.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-12.