Medium · CVSS 6.4CVE-2026-116680

Homebox generic notifier SSRF via HTTP redirect after URL validationCVE-2026-116680

Answer in brief

CVE-2026-116680 records a Medium severity (CVSS 6.4) vulnerability in Homebox generic notifier SSRF via HTTP redirect after URL validation. The current sources do not mark it as known exploited. The current feed maps sysadminsmedia/homebox (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 27, 2026Updated Oct 27, 2026Source checked Oct 27, 2026First seen by HOL Oct 27, 2026Material review Oct 27, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 6.4
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 6.4. 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.

Affected scope and exposure questions

The current feed maps sysadminsmedia/homebox (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
sysadminsmedia/homeboxgeneric	<0.27.0	0.27.0

Recommended response

Check inventory. Check lockfiles and deployed manifests for sysadminsmedia/homebox.
Review the reported fix. Update sysadminsmedia/homebox to 0.27.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Oct 27, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 27, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 27, 2026

Sources and claim methodology

Upstream source description

HomeBox is a home inventory and organization system. Prior to version 0.27.0, Homebox validates generic notifier URLs with ValidateNotifierURL before creation, update, testing, and scheduled delivery, but shoutrrr sends the request through http.DefaultClient.Do without a CheckRedirect policy that revalidates each Location target. An authenticated collection member can configure a permitted notifier host that redirects to loopback, link-local, cloud metadata, or another blocked destination, causing the follow-up request to bypass the product's SSRF policy. The flaw is reachable through POST /api/v1/notifiers/test for immediate requests and through stored notifiers during scheduled maintenance delivery. This issue is fixed in version 0.27.0.

Quoted source text, attributed separately from HOL analysis.

CVE-2026-118172Also CWE-918