invoiceninja Invoice Ninja invoices Endpoint Purify.php isHostSafe server-side request forgery (CVE-2026-83744) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-83744

invoiceninja Invoice Ninja invoices Endpoint Purify.php isHostSafe server-side request forgery

Answer in brief

CVE-2026-83744 records a Unknown severity vulnerability in invoiceninja Invoice Ninja invoices Endpoint Purify.php isHostSafe server-side request forgery. The current sources do not mark it as known exploited. The current feed maps invoiceninja/Invoice Ninja (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 Sep 1, 2026Updated Sep 1, 2026Source checked Sep 1, 2026First seen by HOL Sep 1, 2026Material review Sep 1, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. 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 invoiceninja/Invoice Ninja (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
invoiceninja/Invoice Ninjageneric	5.13.0 \|\| 5.13.1 \|\| 5.13.2 \|\| 5.13.3 \|\| 5.13.4 \|\| 5.13.5 \|\| 5.13.6 \|\| 5.13.7 \|\| 5.13.8 \|\| 5.13.9 \|\| 5.13.10 \|\| 5.13.11 \|\| 5.13.12 \|\| 5.13.13 \|\| 5.13.14 \|\| 5.13.15 \|\| 5.13.16 \|\| 5.13.17 \|\| 5.13.18 \|\| 5.13.19 \|\| 5.13.20 \|\| 5.13.21 \|\| 5.13.22 \|\| 5.13.23 \|\| 5.13.24 \|\| 5.13.25 \|\| 5.13.26	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for invoiceninja/Invoice Ninja.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 1, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 1, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 1, 2026

Sources and claim methodology

Upstream source description

A security vulnerability has been detected in invoiceninja Invoice Ninja up to 5.13.26. This vulnerability affects the function Purify::isHostSafe of the file app/Services/Pdf/Purify.php of the component invoices Endpoint. The manipulation of the argument notes leads to server-side request forgery. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Quoted source text, attributed separately from HOL analysis.