CVE-2026-51956

high

A Broken Object Level Authorization vulnerability exists in Grashjs Atlas CMMS prior to v1.6.0.

A Broken Object Level Authorization vulnerability exists in Grashjs Atlas CMMS prior to v1.6.0. An authenticated user from one tenant can read and modify another tenant's company record by changing only the numeric ID in the /company/{id} endpoint. The application does not enforce tenant-level ownership checks when accessing or updating company objects, allowing cross-tenant access and modification of company profile data.

CVSS

8.1

8.1 (CVSS v3.1)

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Severity source: NVD CVSS v3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)

Timeline (UTC)

Published: 2026-09-01 17:17

Modified: 2026-09-02 16:17

NVD status: Deferred

Last synced 1 day ago

Verified against the source API 2026-10-27 06:50 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

Not reported by the source (unknown — not "none").

Weakness classification (CWE)

CWE-284

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

No vendor advisory or patch reference tagged by NVD. Check the references below.

References

https://github.com/Grashjs/cmms cve@mitre.org
https://github.com/Grashjs/cmms/commit/283bbc985cda497d6b592faae45ae1dbc8d53966 cve@mitre.org
https://github.com/h4vrut4/security-advisories/blob/main/CVE-2026-51956.md cve@mitre.org

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 06:50 UTC · record ↗

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