What is CVE-2022-0839?

CVE-2022-0839 is a critical-severity vulnerability in Liquibase, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.8/10. Published 2022-03-04.

How severe is CVE-2022-0839?

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

XXE in Liquibase

CVE-2022-0839

Improper Restriction of XML External Entity Reference in GitHub repository liquibase/liquibase prior to 4.8.0.

Vulnerability class: XXE (XML External Entity)

Published 2022-03-04 · 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: 0.030 (86.7th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.030 · newest: 0.030 · change: 0.000

Affected products

Liquibase
Liquibase Liquibase/liquibase — versions unspecified
Oracle Sqlcl — versions 19c

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

References

huntr.dev/bounties/f1ae5779-b406-4594-a8a3-d089c68d6e70 (Exploit, Patch, Third Party Advisory)
github.com/liquibase/liquibase/commit/33d9d925082097fb1a3d2fc8e44423d964cd9381 (Patch)
www.oracle.com/security-alerts/cpujul2022.html (Patch, Third Party Advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2022-0839?: CVE-2022-0839 is a critical-severity vulnerability in Liquibase, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.8/10. Published 2022-03-04.
How severe is CVE-2022-0839?: Critical severity. CVSS v3 base score is 9.8 out of 10.