CVE-2026-55542
Snipe-IT's S3 signature image retrieval lacks authorization before temporary URL
Description
### 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
How to fix CVE-2026-55542
To remediate CVE-2026-55542, upgrade the affected package to a fixed version below.
- —upgrade to 8.5.1 or later
Is CVE-2026-55542 being exploited?
No exploitation signal available. Neither CISA KEV nor a current EPSS score has been published for CVE-2026-55542.
Affected packages (1)
- from 0, < 8.5.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | 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 |