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CVE-2026-9831

A race condition in the shared Extreme Platform ONE IAM Gateway API-key authentication path could, under specific high-concurrency traffic conditions, intermittently allow requests authenticated with an Extreme Platform ONE /IAM-issued API key to receive response data for another tenant. The issue was observed through ExtremeCloud IQ/XIQ API endpoints and validated against both XIQ/XAPI and Extreme Platform ONE /Common Services API paths. XIQ-native tokens and standard OAuth/Bearer JWT authentic
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8ea778bb09f476099ab3e8e61c0ccbdbea6a173716c7f00be71e528e711cfddd
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-488","description":"CWE-488 Exposure of data element to wrong session","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:10487d0ef76adcfa6361c82c0eca2b65a50aa43bc4d2aa41adf8c1a55d0d4c08 · sha256:b1ccf097729454de… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-362","description":"CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:10487d0ef76adcfa6361c82c0eca2b65a50aa43bc4d2aa41adf8c1a55d0d4c08 · sha256:b1ccf097729454de… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","platforms":["SaaS (Cloud Hosted)"],"product":"Extreme Platform ONE","vendor":"Extreme Networks","versions":[{"lessThan":"25.10.0-104","status":"affected","version":"0","versionType":"custom"},{"status":"unaffected","version":"25.10.0-104","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:10487d0ef76adcfa6361c82c0eca2b65a50aa43bc4d2aa41adf8c1a55d0d4c08 · sha256:b1ccf097729454de… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.3,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:10487d0ef76adcfa6361c82c0eca2b65a50aa43bc4d2aa41adf8c1a55d0d4c08 · sha256:b1ccf097729454de… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-488","description":"CWE-488 Exposure of data element to wrong session","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:10487d0ef76adcfa6361c82c0eca2b65a50aa43bc4d2aa41adf8c1a55d0d4c08 · sha256:b1ccf097729454de… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-362","description":"CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:10487d0ef76adcfa6361c82c0eca2b65a50aa43bc4d2aa41adf8c1a55d0d4c08 · sha256:b1ccf097729454de… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"tags":["vendor-advisory"],"url":"https://community.extremenetworks.com/t5/security-advisories-formerly/sa-2026-048-extremecloud-iq-cross-tenant-data-exposure-via/ba-p/121851"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:10487d0ef76adcfa6361c82c0eca2b65a50aa43bc4d2aa41adf8c1a55d0d4c08 · sha256:b1ccf097729454de… · /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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