CVE-2026-33284 PUBLISHED

GlobalLeaks has insufficient URL validation in user support API

Assigner: GitHub_M
Reserved: 18.03.2026 Published: 27.03.2026 Updated: 27.03.2026

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.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U
CVSS Score: 1.2

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	None
User Interaction	Active

CVSS 4.0

Product Status

Vendor	globaleaks
Product	globaleaks-whistleblowing-software
Versions	Version < 5.0.89 is affected

References

https://github.com/globaleaks/globaleaks-whistleblowing-software/security/advisories/GHSA-84wr-q36q-wqhv

Problem Types

CWE-20: Improper Input Validation CWE