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CVE-2026-40454

Out-of-bounds Read, Improper Input Validation vulnerability in Apache IoTDB C++ client. Out-of-bounds reads in IoTDB C++ client TsBlock deserializer crash client process on malformed server data. This issue affects Apache IoTDB C++ client: 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:v2:6074fe0fb72ae6c3eee1d2038420032f30c20091c264b1b1401b0f854d2cf236
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-125","description":"CWE-125 Out-of-bounds Read","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:af2b431ca263ff9b80ad9ca22aeade4c571ef98136409912bf2ef5ec52f5a8b8 · sha256:e14883cd3a8cf34a… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-20","description":"CWE-20 Improper Input Validation","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:af2b431ca263ff9b80ad9ca22aeade4c571ef98136409912bf2ef5ec52f5a8b8 · sha256:e14883cd3a8cf34a… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","packageName":"client-cpp","product":"Apache IoTDB C++ client","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:af2b431ca263ff9b80ad9ca22aeade4c571ef98136409912bf2ef5ec52f5a8b8 · sha256:e14883cd3a8cf34a… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:af2b431ca263ff9b80ad9ca22aeade4c571ef98136409912bf2ef5ec52f5a8b8 · sha256:e14883cd3a8cf34a… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-125","description":"CWE-125 Out-of-bounds Read","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:af2b431ca263ff9b80ad9ca22aeade4c571ef98136409912bf2ef5ec52f5a8b8 · sha256:e14883cd3a8cf34a… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-20","description":"CWE-20 Improper Input Validation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:af2b431ca263ff9b80ad9ca22aeade4c571ef98136409912bf2ef5ec52f5a8b8 · sha256:e14883cd3a8cf34a… · /containers/cna/problemTypes/1/descriptions/0

Source references

2 source assertions
{"url":"http://www.openwall.com/lists/oss-security/2026/07/10/8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:af2b431ca263ff9b80ad9ca22aeade4c571ef98136409912bf2ef5ec52f5a8b8 · sha256:e14883cd3a8cf34a… · /containers/adp/1/references/0
{"tags":["vendor-advisory"],"url":"https://lists.apache.org/thread/9wml325g6bpovw0jf5ymtc3xl7fwlkrn"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:af2b431ca263ff9b80ad9ca22aeade4c571ef98136409912bf2ef5ec52f5a8b8 · sha256:e14883cd3a8cf34a… · /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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