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HIGH

CVE-2026-24308

Apache ZooKeeper: Sensitive information disclosure in client configuration handling

CVSS v3

7.5

HIGH

EPSS Score

1.2 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

none

SSVC status

Description

Improper handling of configuration values in ZKConfig in Apache ZooKeeper 3.8.5 and 3.9.4 on all platforms allows an attacker to expose sensitive information stored in client configuration in the client's logfile. Configuration values are exposed at INFO level logging rendering potential production systems affected by the issue. Users are recommended to upgrade to version 3.8.6 or 3.9.5 which fixes this issue.

Technical details

Published
2026-03-07
Last Modified
2026-03-10

Frequently asked questions

What is CVE-2026-24308?

Improper handling of configuration values in ZKConfig in Apache ZooKeeper 3.8.5 and 3.9.4 on all platforms allows an attacker to expose sensitive information stored in client configuration in the client's logfile. Configuration values are exposed at INFO level logging rendering potential production systems affected by the issue. Users are recommended to upgrade to version 3.8.6 or 3.9.5 which fixes this issue.

Is CVE-2026-24308 actively exploited?

Active exploitation of CVE-2026-24308 has not been confirmed. Its EPSS score was 1.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-24308?

CVE-2026-24308 has a CVSS v3 base score of 7.5 (HIGH severity).

Is CVE-2026-24308 affecting your environment?

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