What is CVE-2021-3836?

CVE-2021-3836 is a medium-severity vulnerability in Dbeaver, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 5.5/10. Published 2021-12-14.

How severe is CVE-2021-3836?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2021-3836 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XXE in Dbeaver

CVE-2021-3836

dbeaver is vulnerable to Improper Restriction of XML External Entity Reference

Vulnerability class: XXE (XML External Entity)

Published 2021-12-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.009 (58.1th percentile), scored 2026-10-04.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Dbeaver
Dbeaver Dbeaver/dbeaver — versions unspecified

Weakness classification (CWE)

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

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

huntr.dev/bounties/a98264fb-1930-4c7c-b774-af24c0175fd4 (Exploit, Third Party Advisory, Issue Tracking)
github.com/dbeaver/dbeaver/commit/4debf8f25184b7283681ed3fb5e9e887d9d4fe22 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2021-3836?: CVE-2021-3836 is a medium-severity vulnerability in Dbeaver, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 5.5/10. Published 2021-12-14.
How severe is CVE-2021-3836?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2021-3836 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.