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CVE-2026-40452

Incorrect Authorization, Improper Access Control vulnerability in Apache IoTDB. Authorization bypass in /rest/v2/fastLastQuery exposes last-value data to unauthorized authenticated users. This issue affects Apache IoTDB: from 1.3.5 before 1.3.8, from 2.0.5 before 2.0.10. Users are recommended to upgrade to version 2.0.10, which fixes the issue.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a433c79e0364c4c9d9432ab1916632339f794ebace95d54d3707374f1b08c94c
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-863","description":"CWE-863 Incorrect Authorization","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:89e79430941fe368372728836bf3e973503d45976e506097959e55540c41d50c · sha256:ed144df2448aa9de… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-284","description":"CWE-284 Improper Access Control","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:89e79430941fe368372728836bf3e973503d45976e506097959e55540c41d50c · sha256:ed144df2448aa9de… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"Apache IoTDB","vendor":"Apache Software Foundation","versions":[{"lessThan":"1.3.8","status":"affected","version":"1.3.5","versionType":"semver"},{"lessThan":"2.0.10","status":"affected","version":"2.0.5","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:89e79430941fe368372728836bf3e973503d45976e506097959e55540c41d50c · sha256:ed144df2448aa9de… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:89e79430941fe368372728836bf3e973503d45976e506097959e55540c41d50c · sha256:ed144df2448aa9de… · /containers/adp/1/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-863","description":"CWE-863 Incorrect Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:89e79430941fe368372728836bf3e973503d45976e506097959e55540c41d50c · sha256:ed144df2448aa9de… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-284","description":"CWE-284 Improper Access Control","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:89e79430941fe368372728836bf3e973503d45976e506097959e55540c41d50c · sha256:ed144df2448aa9de… · /containers/cna/problemTypes/1/descriptions/0

Source references

2 source assertions
{"url":"http://www.openwall.com/lists/oss-security/2026/07/10/7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:89e79430941fe368372728836bf3e973503d45976e506097959e55540c41d50c · sha256:ed144df2448aa9de… · /containers/adp/0/references/0
{"tags":["vendor-advisory"],"url":"https://lists.apache.org/thread/04j2l6dosyboor4o2gvrzbrcrpllmh95"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:89e79430941fe368372728836bf3e973503d45976e506097959e55540c41d50c · sha256:ed144df2448aa9de… · /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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