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

CVE-2026-16504

Critical · published July 31, 2026

CVSS v3.1
9.8
EPSS
0%
Percentile
40.6
In the wild
Unconfirmed
What it is

Deployment of the VPS.org one-click Zulip template deploys a hardcoded application signing key, a default database password ("zulip"), and DISABLE_HTTPS=True.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00483 · 40.6th percentile
Weaknesses
CWE-1188 · Initialization of a Resource with an Insecure Default; CWE-1393 · Use of Default Password; CWE-321 · Use of Hard-coded Cryptographic Key
Published
2026-07-31T20:16Z
References (1)
https://kb.cert.org/vuls/id/243636 · [email protected]
EPSS history
Timeline
  • 31 JUL 15:19Z
    VPS.org one-click Zulip template deployment instance contains multiple vulnerabilities
    cvelistv5