CVE-2026-55542 Snipe-IT's S3 signature image retrieval lacks authorization before temporary URL

Low 1.3 Published 8 Jul 2026 Updated 9 Jul 2026

Authenticated users can bypass authorization to retrieve signed S3 URLs for signature images in Snipe-IT deployments using S3 storage.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2026-55542?

CVE-2026-55542 is a low-severity missing authorization vulnerability in Snipeitapp Snipe-It, published on 8 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official 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.

Weakness: CWE-862

Which versions are affected by CVE-2026-55542?

2 open source packages ship an affected version, including snipe/snipe-it. It affects 1 product.

Package	Affected	Fixed in
`snipe/snipe-it` Packagist	All versions	`8.5.1`
`snipe/snipe-it` Packagist	All versions	`8.5.1`

Products include Snipeitapp Snipe-It.

How do I fix CVE-2026-55542?

Upgrade snipe/snipe-it to 8.5.1 or later.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-55542 being exploited?

There is no known exploitation of CVE-2026-55542 in the wild and no public exploit code.

All Snipeitapp Snipe-It vulnerabilities

Sources

Also known as GHSA-6mmj-jhqj-6c6q.