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CVE-2026-30956GHSA-R5V6-2599-9G3M

OneUptime has authorization bypass via client‑controlled is-multi-tenant-query header

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 10.0.21
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

OneUptime is a solution for monitoring and managing online services. Prior to 10.0.21, a low‑privileged user can bypass authorization and tenant isolation in OneUptime v10.0.20 and earlier by sending a forged is-multi-tenant-query header together with a controlled projectid header. Because the server trusts this client-supplied header, internal permission checks in BasePermission are skipped and tenant scoping is disabled. This allows attackers to access project data belonging to other tenants, read sensitive User fields via nested relations, leak plaintext resetPasswordToken, and reset the victim’s password and fully take over the account. This results in cross‑tenant data exposure and full account takeover. This vulnerability is fixed in 10.0.21.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • OneUptime oneuptime

    fixed in 10.0.21

  • @oneuptime/commonnpm

    fixed in 10.0.21

References 2

GitHub · OneUptime/oneuptime