Rsbuild < 2.0.9 Command Injection via openBrowser() URL Handling (CVE-2026-10144) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-10144

Rsbuild < 2.0.9 Command Injection via openBrowser() URL Handling

Answer in brief

CVE-2026-10144 records a Unknown severity vulnerability in Rsbuild < 2.0.9 Command Injection via openBrowser() URL Handling. The current sources do not mark it as known exploited. The current feed maps web-infra-dev/rsbuild (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 15, 2026Updated Sep 15, 2026Source checked Sep 15, 2026First seen by HOL Sep 15, 2026Material review Sep 15, 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: Available

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 web-infra-dev/rsbuild (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
web-infra-dev/rsbuildgeneric	>=0 <2.0.9	2.0.9

Recommended response

Check inventory. Check lockfiles and deployed manifests for web-infra-dev/rsbuild.
Review the reported fix. Update web-infra-dev/rsbuild to 2.0.9 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 15, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 15, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 15, 2026

Sources and claim methodology

Upstream source description

Rsbuild before 2.0.9 contains a command injection vulnerability that allows attackers to execute arbitrary OS commands by supplying a crafted URL containing shell metacharacters to the server.open configuration on macOS. The openBrowser() function in packages/core/src/server/open.ts passes the URL through encodeURI() before interpolating it into a shell command executed via child_process.exec(), but because encodeURI() does not encode dollar signs, parentheses, or semicolons, embedded shell metacharacters are evaluated by /bin/sh, enabling arbitrary command execution.

Quoted source text, attributed separately from HOL analysis.