VulnerabilityDeferred

CVE-2026-40452

Incorrect Authorization, Improper Access Control vulnerability in Apache IoTDB.

HIGH 7.5EPSS 0.43%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.43%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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.

CVSS 3.1: 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.43% probability · 37th percentile
CISA KEV: Not listed
Weakness: CWE-284, CWE-863
Source: security@apache.org

References

https://lists.apache.org/thread/04j2l6dosyboor4o2gvrzbrcrpllmh95
http://www.openwall.com/lists/oss-security/2026/07/10/7

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.