What is CVE-2019-6342?

CVE-2019-6342 is a critical-severity vulnerability in Drupal. CVSS score: 9.8/10. Published 2020-05-28.

How severe is CVE-2019-6342?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Drupal

CVE-2019-6342

An access bypass vulnerability exists when the experimental Workspaces module in Drupal 8 core is enabled. This can be mitigated by disabling the Workspaces module. It does not affect any release other than Drupal 8.7.4.

Published 2020-05-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.022 (82.4th percentile), scored 2026-10-25.

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.021 · newest: 0.022 · change: +0.001

Affected products

Drupal — versions 8.7.4
Drupal Core — versions Drupal 8 8.7.4

References

www.drupal.org/sa-core-2019-008 (Vendor Advisory)

Frequently asked questions

What is CVE-2019-6342?: CVE-2019-6342 is a critical-severity vulnerability in Drupal. CVSS score: 9.8/10. Published 2020-05-28.
How severe is CVE-2019-6342?: Critical severity. CVSS v3 base score is 9.8 out of 10.