CVE-2026-111691: WIMOOR through commit ec86736 Authentication Bypass via Forged X-USERINFO Header

Severity: high (CVSS 7.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-16 · updated 2026-10-16
Weakness: CWE-290

Description

WIMOOR through commit ec86736 contains an authentication bypass vulnerability that allows attackers to impersonate any tenant and privilege level by sending an unsigned X-USERINFO header. Attackers reaching backend service ports directly, bypassing the gateway, can forge companyid and manager or admin usertype values to read and modify other tenants' orders, finance data, and Amazon seller authorizations.

References

https://github.com/wimoor-erp/wimoor/blob/ec86736beb1a3b9ca6ba0d1c48a1c415445b8dc4/wimoor-common/common-mvc/src/main/java/com/wimoor/common/mvc/filter/UserInfoFilter.java#L42-L51
https://hackmd.io/@hieuPenguinnn/wimoor-trusted-x-userinfo-header-tenant-bypass
https://www.vulncheck.com/advisories/wimoor-through-commit-ec86736-authentication-bypass-via-forged-x-userinfo-header

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