Snipe-IT's S3 signature image retrieval lacks authorization before temporary URL (CVE-2026-55542) | HOL Guard CVE

Medium · CVSS 4.3CVE-2026-55542GHSA-6MMJ-JHQJ-6C6Q

Snipe-IT's S3 signature image retrieval lacks authorization before temporary URL

Answer in brief

CVE-2026-55542 records a Medium severity (CVSS 4.3) vulnerability in Snipe-IT's S3 signature image retrieval lacks authorization before temporary URL. The current sources do not mark it as known exploited. The current feed maps snipe/snipe-it (composer), grokability/snipe-it (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 Jul 8, 2026Updated Jul 10, 2026Source checked Sep 17, 2026First seen by HOL Jun 23, 2026Material review Jul 10, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 4.3
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 4.3. 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 snipe/snipe-it (composer), grokability/snipe-it (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
snipe/snipe-itcomposer	<=8.5.0	8.5.1
grokability/snipe-itgeneric	< 8.5.1	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for snipe/snipe-it, grokability/snipe-it.
Review the reported fix. Update snipe/snipe-it to 8.5.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Jul 8, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Jul 10, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Jun 23, 2026

Sources and claim methodology

Upstream source description

Snipe-IT is an IT asset/license management system. Prior to version 8.6.1, Snipe-IT S3 signature image retrieval lacks authorization before temporary URL. On S3-backed deployments, authenticated users who know a signature filename can obtain a 5-minute signed S3 URL because the S3 branch returns before the `authorize()` call used by the local-file branch. Version 8.6.1 contains a patch.

Quoted source text, attributed separately from HOL analysis.