CVE-2026-16504
Received Received - Intake

Hardcoded Credentials in VPS.org Zulip One-Click Template

Publication date: 2026-07-31

Last updated on: 2026-07-31

Assigner: CERT/CC

Description
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 Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-07-31
Last Modified
2026-07-31
Generated
2026-07-31
AI Q&A
2026-07-31
EPSS Evaluated
N/A
NVD
CVE-2026-16504
EUVD
EUVD-2026-51548

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
zulip zulip *

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability involves a one-click Zulip template deployment that uses hardcoded credentials. It includes a fixed application signing key, a default database password set to 'zulip', and HTTPS explicitly disabled (DISABLE_HTTPS=True).

Impact Analysis

The hardcoded credentials and disabled HTTPS can allow attackers to intercept communications, gain unauthorized access to the database, or impersonate the application. This may lead to data breaches or unauthorized system control.

Compliance Impact

This vulnerability likely violates GDPR and HIPAA due to insecure data transmission (HTTPS disabled) and exposed credentials. It risks unauthorized data access, breaching confidentiality and integrity requirements.

Mitigation Strategies

Change the default database password from 'zulip' to a strong, unique password. Disable DISABLE_HTTPS=True and enable HTTPS. Replace the hardcoded application signing key with a new, securely generated one.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-16504. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart