CVE-2026-55542: Snipe/snipe it Snipe-IT's S3 Signature Image Retrieval Vulnerability

LOW
Advisory Identifier: GHSA-6mmj-jhqj-6c6q
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CWE-862
Published
Advisory Summary

CVE-2026-55542 is a LOW snipe-it's s3 signature image retrieval vulnerability (CWE-862: Missing Authorization) affecting Snipe/snipe it libraries in the Packagist ecosystem. The issue involves snipe-it's s3 signature image retrieval lacks authorization before temporary url. Remediation is available by upgrading affected packages to version 8.5.1.

CVE-2026-55542 at a Glance

CVE Identifier CVE-2026-55542
GHSA Identifier GHSA-6mmj-jhqj-6c6q
Severity LOW
CVSS v3.1 Base Score N/A
CWE Classification CWE-862: Missing Authorization
Affected Product Snipe/snipe it
Package Ecosystem Packagist
Published Date
Last Updated

How to Fix CVE-2026-55542

To remediate this vulnerability, upgrade all affected Snipe/snipe it dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

snipe/snipe-it fixed: 8.5.1 
Upgrade snipe/snipe-it to 8.5.1
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for snipe/snipe-it

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-55542, inspect your project dependencies for Snipe/snipe it:

inspect dependencies for snipe/snipe-it

Analyze the terminal output to locate any version of Snipe/snipe it in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 8.5.1), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-862: Missing Authorization, where the product does not perform an authorization check when an actor attempts to access a resource or perform an action. In Snipe/snipe it, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact 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. ## Key evidence `routes/web.php:135-143`; `app/Http/Controllers/ActionlogController.php:16-44`; `app/Http/Controllers/Account/AcceptanceController.php:160,175`; `app/Listeners/LogListener.php:56`; `app/Http/Transformers/ActionlogsTransformer.php:188` ### Patches Patched in https://github.com/grokability/snipe-it/commit/ded6515cbc27a28f07395da318483c2e96263259 ### Credit Disclosed by Ikaro tiagonas

CVE-2026-55542 Affected Snipe/snipe it Versions

1 component(s)
Fixed Versions:
8.5.1
Product / Package Ecosystem Affected Versions Fixed Version
snipe/snipe-it
 Packagist
< 8.5.1
8.5.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/grokability/snipe-it/security/advisories/GHSA-6mmj-jhqj-6c6q
Security Fix Commit FIX COMMIT
https://github.com/grokability/snipe-it/commit/ded6515cbc27a28f07395da318483c2e96263259
Snipe/snipe it Source Repository REPOSITORY
https://github.com/grokability/snipe-it

Frequently Asked Questions

What is CVE-2026-55542?
CVE-2026-55542 is a security vulnerability in Snipe/snipe it involving Snipe-IT's S3 signature image retrieval lacks authorization before temporary URL under CWE-862: Missing Authorization.
Which Snipe/snipe it versions are affected?
Affected versions include releases prior to 8.5.1 across affected packages: snipe/snipe-it.
What version fixes CVE-2026-55542?
Upgrading to 8.5.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is snipe/snipe-it affected?
Yes, snipe/snipe-it is affected in releases prior to 8.5.1. Upgrade your dependency to 8.5.1 or later.
What CWE is associated with CVE-2026-55542?
CVE-2026-55542 is classified under CWE-862: Missing Authorization (The product does not perform an authorization check when an actor attempts to access a resource or perform an action.).
How can I check Packagist dependencies for CVE-2026-55542?
Run the dependency tree command: 'inspect dependencies for snipe/snipe-it'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-6mmj-jhqj-6c6q",
  "modified" : "2026-06-23T23:11:26Z",
  "published" : "2026-06-23T23:11:26Z",
  "aliases" : [ "CVE-2026-55542" ],
  "summary" : "Snipe-IT's S3 signature image retrieval lacks authorization before temporary URL ",
  "details" : "### Impact\n Snipe-IT S3 signature image retrieval lacks authorization before temporary URL.\n\nOn 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.\n\n## Key evidence\n`routes/web.php:135-143`; `app/Http/Controllers/ActionlogController.php:16-44`; `app/Http/Controllers/Account/AcceptanceController.php:160,175`; `app/Listeners/LogListener.php:56`; `app/Http/Transformers/ActionlogsTransformer.php:188`\n\n\n### Patches\nPatched in  https://github.com/grokability/snipe-it/commit/ded6515cbc27a28f07395da318483c2e96263259 \n\n### Credit\nDisclosed by Ikaro tiagonas",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "snipe/snipe-it"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "8.5.1"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 8.5.0"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/grokability/snipe-it/security/advisories/GHSA-6mmj-jhqj-6c6q"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/grokability/snipe-it/commit/ded6515cbc27a28f07395da318483c2e96263259"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/grokability/snipe-it"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-862" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-06-23T23:11:26Z",
    "nvd_published_at" : null
  }
}