CVE-2026-55643

Snipe-IT: Tenant Isolation Bypass in FMCS Floater Mode

HIGH
8.8
CVSS Score
Published: August 19, 2026 at 06:25 PM UTC
Updated: September 30, 2026 at 12:58 PM UTC
2 products affected across 2 vendorsSnipe ITSnipe-IT

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Severity
HIGH8.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Snipe-IT is an IT asset/license management system. Prior to 8.6.3, a company-scoped user in FMCS floater mode can access users whose company_id is null because broad API queries and bulk web actions do not consistently apply isCurrentUserHasAccess. The /api/v1/users and /api/v1/users/{id}/licenses endpoints can expose personal data and assigned licenses, /users/bulkeditsave can modify out-of-scope profiles, and /users/merge can soft-delete users and transfer assigned assets. This issue is fixed in version 8.6.3.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 8.6.3
Affected range stops below 8.6.3, so it looks safe — our inference, not a vendor statement
v < 8.6.3
Affected range stops below 8.6.3, so it looks safe — our inference, not a vendor statement

References (3)

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-863

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