CVE-2026-33284 GlobalLeaks has insufficient URL validation in user support API
Attackers can inject arbitrary URLs into support emails sent to administrators, potentially enabling phishing or redirect attacks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-33284?
CVE-2026-33284 is a low-severity vulnerability in globaleaks-whistleblowing-software, published on 27 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-20
Which versions are affected by CVE-2026-33284?
It affects 1 product.
Products include Globaleaks Globaleaks.
How do I fix CVE-2026-33284?
No fix has been published for CVE-2026-33284 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-33284 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-33284 exists.
Sources
Also known as GHSA-84wr-q36q-wqhv.