Exposure of Resource to Wrong Sphere in Zip-Local (CVE-2021-23484) | HOL Guard CVE

Critical · CVSS 9.8CVE-2021-23484GHSA-WXJ7-97FP-J53J

Exposure of Resource to Wrong Sphere in Zip-Local

Answer in brief

CVE-2021-23484 records a Critical severity (CVSS 9.8) vulnerability in Exposure of Resource to Wrong Sphere in Zip-Local. The current sources do not mark it as known exploited. The current feed maps zip-local (npm). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

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

Published Feb 1, 2022Updated Sep 10, 2026Source checked Sep 10, 2026First seen by HOL Sep 10, 2026Material review Sep 10, 2026

Upstream Advisory

Key facts

Risk: Critical · CVSS 9.8
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

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.

Affected scope and exposure questions

The current feed maps zip-local (npm). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
zip-localnpm	>=0 <0.3.5	0.3.5

Recommended response

Check inventory. Check lockfiles and deployed manifests for zip-local.
Review the reported fix. Update zip-local to 0.3.5 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Feb 1, 2022
Evidence: source:osv:source_dates:source-dates:record
Source modified
Sep 10, 2026
Evidence: source:osv:source_dates:source-dates:record
First seen by HOL
Sep 10, 2026

Sources and claim methodology

Upstream source description

The package zip-local before 0.3.5 are vulnerable to Arbitrary File Write via Archive Extraction (Zip Slip) which can lead to an extraction of a crafted file outside the intended extraction directory.

Quoted source text, attributed separately from HOL analysis.