Vulnerability record · CVE-2026-56767 · published 25 June 2026

CVE-2026-56767: Missing authorization vulnerability

Maxun before 0.0.42 contains a cross-tenant insecure direct object reference vulnerability in storage and webhook API handlers that allows authenticated users to access other users' robots and OAuth tokens. Attackers can read plaintext Google and Airtable access tokens, modify, delete, or execute other users' robots by bypassing ownership checks in API endpoints.

8.7 CVSS 4.0 High EPSS 0.60% · top 53.5% CWE-862 · Missing authorization Deferred

8.7CVSS 4.0 base score

0.60%EPSS exploitation probability, 30 days

NoNot in CISA KEV

0Affected product versions listed by NVD

4References

14 Jul 2026Last modified by NVD

Description

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

Link	Tags
https://github.com/getmaxun/maxun/commit/11db0257531f1c23dec94727793c9444ee2873cf
https://github.com/getmaxun/maxun/issues/1079
https://github.com/getmaxun/maxun/pull/1088
https://www.vulncheck.com/advisories/maxun-cross-tenant-idor-in-storage-and-webhook-api-handlers

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-56767), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.