Answer in brief
CVE-2026-16504 records a Critical severity (CVSS 9.8) vulnerability in VPS.org one-click Zulip template deployment instance contains multiple vulnerabilities. The current sources do not mark it as known exploited. The current feed maps VPS.org/Zulip template (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps VPS.org/Zulip template (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| VPS.org/Zulip templategeneric | N/A | Not reported |
Published upstream
Jul 31, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 3, 2026
Deployment of the VPS.org one-click Zulip template deploys a hardcoded application signing key, a default database password ("zulip"), and DISABLE_HTTPS=True.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-16504 records a Critical severity (CVSS 9.8) vulnerability in VPS.org one-click Zulip template deployment instance contains multiple vulnerabilities. The current sources do not mark it as known exploited. The current feed maps VPS.org/Zulip template (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps VPS.org/Zulip template (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| VPS.org/Zulip templategeneric | N/A | Not reported |
Published upstream
Jul 31, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 3, 2026
Deployment of the VPS.org one-click Zulip template deploys a hardcoded application signing key, a default database password ("zulip"), and DISABLE_HTTPS=True.
Quoted source text, attributed separately from HOL analysis.