Critical · CVSS 9.1CVE-2026-103648

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in image-downloader

Answer in brief

CVE-2026-103648 records a Critical severity (CVSS 9.1) vulnerability in Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in image-downloader. The current sources do not mark it as known exploited. The current feed maps demsking/image-downloader (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 2, 2026Updated Oct 2, 2026Source checked Oct 2, 2026First seen by HOL Oct 2, 2026Material review Oct 2, 2026

Upstream Advisory

Key facts

Risk: Critical · CVSS 9.1
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 9.1. 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 demsking/image-downloader (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
demsking/image-downloadergeneric	>=0 <4.3.1	4.3.1

Recommended response

Check inventory. Check lockfiles and deployed manifests for demsking/image-downloader.
Review the reported fix. Source-reported solution: Upgrade to version 4.3.1.

Evidence timeline and material changes

Published upstream
Oct 2, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 2, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 2, 2026

Sources and claim methodology

Upstream source description

Path traversal in image-downloader 4.3.0 allows an attacker who can control the download URL to cause downloaded response data to be written outside the configured destination directory.

Quoted source text, attributed separately from HOL analysis.