Joro: Unauthenticated Cross-Origin Plugin Upload Leads to RCE (CVE-2026-53649) | HOL Guard CVE

Critical · CVSS 9.6CVE-2026-53649GHSA-XQHV-CHQM-FHCC

Joro: Unauthenticated Cross-Origin Plugin Upload Leads to RCE

Answer in brief

CVE-2026-53649 records a Critical severity (CVSS 9.6) vulnerability in Joro: Unauthenticated Cross-Origin Plugin Upload Leads to RCE. The current sources do not mark it as known exploited. The current feed maps BishopFox/joro (generic), github.com/BishopFox/joro (go). 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 2, 2026Updated Sep 9, 2026Source checked Sep 17, 2026First seen by HOL Jul 8, 2026Material review Sep 9, 2026

Upstream Advisory

Key facts

Risk: Critical · CVSS 9.6
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 9.6. 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 BishopFox/joro (generic), github.com/BishopFox/joro (go). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
BishopFox/jorogeneric	< 1.1.1	Not reported
github.com/BishopFox/jorogo	<0.0.0-20260601151442-5c0ca35db828	0.0.0-20260601151442-5c0ca35db828

Recommended response

Check inventory. Check lockfiles and deployed manifests for BishopFox/joro, github.com/BishopFox/joro.
Review the reported fix. Update github.com/BishopFox/joro to 0.0.0-20260601151442-5c0ca35db828 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 2, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 9, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Jul 8, 2026

Sources and claim methodology

Upstream source description

Joro is a web exploitation framework. Prior to version 1.1.1, Joro's default proxy mode exposes a local API on 127.0.0.1:9090 that performs no authentication and applies a wildcard CORS policy. Because plugin uploads use the CORS-safelisted multipart/form-data content type, cross-origin JavaScript on any page the operator visits can reach privileged endpoints - including uploading a native plugin and triggering a restart - directly through the operator's browser, with no preflight or credentials. Since plugins execute on load, this yields unauthenticated remote code execution as the operator's user from a single page visit. This issue has been patched in version 1.1.1.

Quoted source text, attributed separately from HOL analysis.