What is CVE-2026-40005?

CVE-2026-40005 is a critical-severity vulnerability in Apache Software Foundation Iotdb, classified under Path Traversal. CVSS score: 9.1/10. Published 2026-07-10.

How severe is CVE-2026-40005?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Path Traversal in Apache Software Foundation Iotdb

CVE-2026-40005

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Apache IoTDB. An attacker can write arbitrary files anywhere the IoTDB process has write permissions with unsafe API. This issue affects Apache IoTDB: from 1.0.0 before 2.0.10. Users are recommended to upgrade to version 2.0.10, which fixes the issue.

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.004 (34.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Apache Software Foundation Iotdb — versions 1.0.0

Weakness classification (CWE)

CWE-22 — Path Traversal

References

security@apache.org (vendor-advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2026-40005?: CVE-2026-40005 is a critical-severity vulnerability in Apache Software Foundation Iotdb, classified under Path Traversal. CVSS score: 9.1/10. Published 2026-07-10.
How severe is CVE-2026-40005?: Critical severity. CVSS v3 base score is 9.1 out of 10.