What is CVE-2021-39911?

CVE-2021-39911 is a low-severity vulnerability in GitLab. CVSS score: 1.7/10. Published 2021-11-05.

How severe is CVE-2021-39911?

Low severity. CVSS v3 base score is 1.7 out of 10.

Vulnerability in GitLab

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

Published 2021-11-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 1.7 (Low). Vector: CVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.008 (54.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.008 · change: +0.001

Affected products

GitLab — versions >=13.9, <14.2.6, 14.4.0, >=14.3, <14.3.4

References

gitlab.com/gitlab-org/gitlab/-/issues/297470 (Broken Link)
gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39911.json (Vendor Advisory)

Frequently asked questions

What is CVE-2021-39911?: CVE-2021-39911 is a low-severity vulnerability in GitLab. CVSS score: 1.7/10. Published 2021-11-05.
How severe is CVE-2021-39911?: Low severity. CVSS v3 base score is 1.7 out of 10.