CVE-2026-72741: Rainbond 6.9.7 Region API Cross-Enterprise IDOR via Tenant Access

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-13 · updated 2026-10-24
Weakness: CWE-639

Description

Rainbond through 6.9.7 contains a broken access control vulnerability in the CheckToken function that allows authenticated attackers to access unauthorized enterprise resources by substituting another enterprise's tenant name in URL paths. Attackers can use any valid API token to bypass enterprise ID verification and access or modify another enterprise's services, plugins, environment variables, and certificates.

Affected products

goodrain rainbond: through 6.9.7

References

https://github.com/goodrain/rainbond/issues/2665
https://www.vulncheck.com/advisories/rainbond-region-api-cross-enterprise-idor-via-tenant-access

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