VulnerabilityDeferred

CVE-2026-16504

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

CRITICAL 9.8EPSS 0.35%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.35%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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 3.1: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.35% probability · 29th percentile
CISA KEV: Not listed
Weakness: CWE-321, CWE-1188, CWE-1393
Source: cret@cert.org

References

https://kb.cert.org/vuls/id/243636

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.