Medium severity · published Mar 27, 2026
CVE-2026-33284
GlobalLeaks has insufficient URL validation in user support API
4.3
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 10% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GL
globaleaks-whistleblowing-software · globaleaks
< 5.0.89 · source: vendor
GL
Globaleaks · Globaleaks
before 5.0.89 · source: NVD
Affected product
GL
globaleaks-whistleblowing-software
globaleaks