What is CVE-2026-33284?

CVE-2026-33284 is a medium-severity vulnerability in Globaleaks, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2026-03-27.

How severe is CVE-2026-33284?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Improper input validation in Globaleaks

CVE-2026-33284

GlobaLeaks is free and open-source whistleblowing software. Prior to version 5.0.89, the /api/support endpoint of GlobaLeaks performs minimal validation on user-submitted support requests. As a result, arbitrary URLs can be included in support emails sent to administrators. Version 5.0.89 patches the issue.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.002 (9.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

Affected products

Globaleaks
Globaleaks Globaleaks-whistleblowing-software — versions < 5.0.89

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-33284?: CVE-2026-33284 is a medium-severity vulnerability in Globaleaks, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2026-03-27.
How severe is CVE-2026-33284?: Medium severity. CVSS v3 base score is 4.3 out of 10.