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CVE-2026-16504
VPS.org one-click Zulip template deployment instance contains multiple vulnerabilities
Critical9.8EPSS 0.48%
- Published
- Updated
- Reserved
- Assigned by
- certcc
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Deferred | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.48% · top 58% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
- CWE-1188: Initialization of a Resource with an Insecure Default
- CWE-321: Use of Hard-coded Cryptographic Key
- CWE-1393: Use of Default Password
- CWE-1188 Initialization of a Resource with an Insecure Default (opens in a new tab)All about CWE-1188 and its CVEs
- CWE-321 Use of Hard-coded Cryptographic Key (opens in a new tab)All about CWE-321 and its CVEs
- CWE-1393 Use of Default Password (opens in a new tab)All about CWE-1393 and its CVEs
Affected products
- affected N/A
References (1)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-16504)Record last updated .