CVE-2026-51956CWE-284broken-access-control

CVE-2026-51956

High · published September 1, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
34.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00413 · 34.4th percentile
Weakness
CWE-284 · Improper Access Control
Published
2026-09-01T21:17Z
References (3)
https://github.com/Grashjs/cmms · [email protected]https://github.com/Grashjs/cmms/commit/283bbc985cda497d6b592faae45ae1dbc8d53966 · [email protected]https://github.com/h4vrut4/security-advisories/blob/main/CVE-2026-51956.md · [email protected]
EPSS history
Timeline
  • 03 SEP 03:30Z
    EPSS moved — → 0%
    epss
  • 01 SEP 00:00Z
    A Broken Object Level Authorization vulnerability exists in Grashjs Atlas CMMS prior to v1.6.0
    cvelistv5