Snipe-IT: Tenant Isolation Bypass in FMCS Floater Mode
Impact
Due to inconsistent authorization checks, a company-scoped user can bypass tenant boundaries to read, mutate, and soft-delete users who do not belong to any company (company_id = null). While direct instance authorization (isCurrentUserHasAccess) correctly denies access to these out-of-scope users, multiple API endpoints and bulk action web routes fail to enforce this restriction, relying instead on class-level permissions or broad scoped queries. Impact:
A malicious user scoped to a specific company (e.g., Company A) can:
Data Leakage: Extract PII and assigned licenses of users outside their tenant via the API (/api/v1/users and /api/v1/users/{id}/licenses).
Data Modification: Mutate out-of-scope user profiles (e.g., changing city, notes) via the /users/bulkeditsave web route.
Data Deletion & Asset Theft: Soft-delete out-of-scope users and transfer their assigned assets to themselves via the /users/merge web route.
Patches
Patched in https://github.com/grokability/snipe-it/commit/fbe05a8df4742729a9b0756c016d45f48246cc7b,
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | snipe/snipe-it | < 8.6.3 | 8.6.3 |
References
- https://github.com/grokability/snipe-it/security/advisories/GHSA-c6w2-j4wq-mvwg
- https://nvd.nist.gov/vuln/detail/CVE-2026-55643
- https://github.com/grokability/snipe-it/commit/fbe05a8df4742729a9b0756c016d45f48246cc7b
- https://github.com/grokability/snipe-it
- https://github.com/grokability/snipe-it/releases/tag/v8.6.3
- CVSS vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N- Weakness (CWE)
CWE-863- Platform
- Composer
- Package
snipe/snipe-it- Disclosed
- 19.08.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-c6w2-j4wq-mvwg - CC BY 4.0
Vulnerability history: snipe/snipe-it
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 81
- First → latest
- 10.2021 09.2026
- Without a fix
- 6
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 23
- Medium 53
- Low 4
Disclosures per year
- 2021: 10
- 2022: 20
- 2023: 2
- 2024: 3
- 2025: 6
- 2026: 40
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Snipe-IT: Tenant Isolation Bypass in FMCS Floater Mode this entry
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