CVE-2026-16504criticalCWE-1188CWE-1393CWE-321

CVE-2026-16504: critical vulnerability in VPS.org Zulip template

VPS.org one-click Zulip template deployment instance contains multiple vulnerabilities

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28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 9.8epss 0.5%
Deployment of the VPS.org one-click Zulip template deploys a hardcoded application signing key, a default database password ("zulip"), and DISABLE_HTTPS=True.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
VPS.org · Zulip template