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CVE-2026-30956

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,
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c2eeb92a6fc9d731635b2f7f8be35bfd0f0afa1f6f44be8e7cd9112467c01f42
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-285","description":"CWE-285: Improper Authorization","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7e31e6c3000133c3b9b3d1a99b9dcbbc81c240eea876117a32fa052b71dad10f · sha256:df4eb3c572fcfccd… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-862","description":"CWE-862: Missing Authorization","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7e31e6c3000133c3b9b3d1a99b9dcbbc81c240eea876117a32fa052b71dad10f · sha256:df4eb3c572fcfccd… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"oneuptime","vendor":"OneUptime","versions":[{"status":"affected","version":"< 10.0.21"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7e31e6c3000133c3b9b3d1a99b9dcbbc81c240eea876117a32fa052b71dad10f · sha256:df4eb3c572fcfccd… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":10,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:7e31e6c3000133c3b9b3d1a99b9dcbbc81c240eea876117a32fa052b71dad10f · sha256:df4eb3c572fcfccd… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-285","description":"CWE-285: Improper Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7e31e6c3000133c3b9b3d1a99b9dcbbc81c240eea876117a32fa052b71dad10f · sha256:df4eb3c572fcfccd… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-862","description":"CWE-862: Missing Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7e31e6c3000133c3b9b3d1a99b9dcbbc81c240eea876117a32fa052b71dad10f · sha256:df4eb3c572fcfccd… · /containers/cna/problemTypes/1/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/OneUptime/oneuptime/releases/tag/10.0.21","tags":["x_refsource_MISC"],"url":"https://github.com/OneUptime/oneuptime/releases/tag/10.0.21"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7e31e6c3000133c3b9b3d1a99b9dcbbc81c240eea876117a32fa052b71dad10f · sha256:df4eb3c572fcfccd… · /containers/cna/references/1
{"name":"https://github.com/OneUptime/oneuptime/security/advisories/GHSA-r5v6-2599-9g3m","tags":["x_refsource_CONFIRM"],"url":"https://github.com/OneUptime/oneuptime/security/advisories/GHSA-r5v6-2599-9g3m"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7e31e6c3000133c3b9b3d1a99b9dcbbc81c240eea876117a32fa052b71dad10f · sha256:df4eb3c572fcfccd… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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