Snipe-IT: Tenant Isolation Bypass in FMCS Floater Mode
The advisory, in context
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 packages
Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.
Earlier releases before 8.6.3
Fixed in 8.6.3
279 explicitly affected versions
3.2.0, v0.1.0, v0.1.1, v0.1.2, v0.2.0, v0.3.0-alpha, v0.3.10-alpha, v0.3.11-alpha, v0.3.7-alpha, v0.3.8-alpha, v0.3.9-alpha, v1.0, v1.1, v1.2.0, v1.2.1, v1.2.10, v1.2.11, v1.2.2, v1.2.3, v1.2.3-beta, v1.2.4, v1.2.4-beta, v1.2.5, v1.2.6, v1.2.6-beta, v1.2.6.1, v1.2.7, v1.2.7-beta, v1.2.8, v1.2.9, v2.0, v2.0-RC-1, v2.0-beta, v2.0.1, v2.0.2, v2.0.3, v2.0.4, v2.0.5, v2.0.6, v2.1.0, v2.1.1, v2.1.2, v3.0, v3.0-alpha, v3.0-alpha2, v3.0-beta.1, v3.0-beta.2, v3.0-beta.3, v3.0.0-beta, v3.1.0, v3.3.0, v3.3.0-beta, v3.4, v3.4.0-alpha, v3.4.0-beta, v3.5.0, v3.5.0-beta, v3.5.0-beta2, v3.5.1, v3.5.2, v3.6.0, v3.6.1, v3.6.2, v3.6.3, v3.6.4, v3.6.5, v3.6.6, v4-beta3, v4-beta4, v4.0, v4.0-alpha, v4.0-alpha-2, v4.0-beta, v4.0-beta2, v4.0-beta5, v4.0-beta6, v4.0.1, v4.0.10, v4.0.11, v4.0.12, v4.0.13, v4.0.14, v4.0.15, v4.0.2, v4.0.3, v4.0.4, v4.0.5, v4.0.6, v4.0.7, v4.0.8, v4.0.9, v4.1.0, v4.1.0-beta, v4.1.0-beta2, v4.1.1, v4.1.10, v4.1.11, v4.1.12, v4.1.13, v4.1.14, v4.1.2, v4.1.3, v4.1.4, v4.1.5, v4.1.6, v4.1.7, v4.1.8, v4.1.9, v4.2.0, v4.3.0, v4.4.0, v4.4.1, v4.5.0, v4.6.0, v4.6.1, v4.6.10, v4.6.11, v4.6.12, v4.6.13, v4.6.14, v4.6.15, v4.6.16, v4.6.17, v4.6.18, v4.6.2, v4.6.3, v4.6.4, v4.6.5, v4.6.6, v4.6.7, v4.6.8, v4.6.9, v4.7.0, v4.7.1, v4.7.2, v4.7.3, v4.7.4, v4.7.5, v4.7.6, v4.7.7, v4.7.8, v4.8.0, v4.9.0, v4.9.1, v4.9.2, v4.9.3, v4.9.4, v4.9.5, v5.0.0, v5.0.0-beta-1.0, v5.0.0-beta-1.1, v5.0.0-beta-2, v5.0.0-beta-3.0, v5.0.0-beta-4, v5.0.0-beta-5, v5.0.1, v5.0.10, v5.0.11, v5.0.12, v5.0.2, v5.0.3, v5.0.4, v5.0.5, v5.0.6, v5.0.7, v5.0.8, v5.0.9, v5.1.0, v5.1.1, v5.1.2, v5.1.3, v5.1.4, v5.1.5, v5.1.6, v5.1.7, v5.1.8, v5.2.0, v5.3.0, v5.3.1, v5.3.10, v5.3.2, v5.3.3, v5.3.4, v5.3.5, v5.3.6, v5.3.7, v5.3.8, v5.3.9, v5.4.0, v5.4.1, v5.4.2, v5.4.3, v5.4.4, v6.0.0, v6.0.0-RC-1, v6.0.0-RC-2, v6.0.0-RC-3, v6.0.0-RC-4, v6.0.0-RC-5, v6.0.0-RC-6, v6.0.0-RC-7, v6.0.0-RC-8, v6.0.1, v6.0.10, v6.0.11, v6.0.12, v6.0.13, v6.0.14, v6.0.2, v6.0.3, v6.0.4, v6.0.5, v6.0.6, v6.0.7, v6.0.8, v6.0.9, v6.1.0, v6.1.1, v6.1.2, v6.2.0, v6.2.1, v6.2.2, v6.2.3, v6.3.0, v6.3.1, v6.3.2, v6.3.3, v6.3.4, v6.4.0, v6.4.1, v6.4.2, v7.0.0, v7.0.1, v7.0.10, v7.0.11, v7.0.12, v7.0.13, v7.0.2, v7.0.3, v7.0.4, v7.0.5, v7.0.6, v7.0.7, v7.0.8, v7.0.9, v7.1.14, v7.1.15, v7.1.16, v7.1.17, v8.0.0, v8.0.1, v8.0.2, v8.0.3, v8.0.4, v8.1.0, v8.1.1, v8.1.15, v8.1.16, v8.1.17, v8.1.18, v8.1.2, v8.1.3, v8.1.4, v8.2.0, v8.2.1, v8.3.0, v8.3.1, v8.3.2, v8.3.3, v8.3.4, v8.3.5, v8.3.6, v8.3.7, v8.4.0, v8.4.1, v8.5.0, v8.6.0, v8.6.1, v8.6.2
View affected-version evidence
{
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}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