Vulnerability in Palo Alto Networks Chronosphere Chronocollector

CVE-2026-0239

An information disclosure vulnerability in the Chronosphere Chronocollector enables an unauthenticated attacker with network access to the collector service to retrieve sensitive information.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (6.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-0239: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-0239?
CVE-2026-0239 is a medium-severity vulnerability in Palo Alto Networks Chronosphere Chronocollector, classified under Exposure of Sensitive System Information to an Unauthorized Control Sphere. CVSS score: 6.5/10. Published 2026-05-13.
How severe is CVE-2026-0239?
Medium severity. CVSS v3 base score is 6.5 out of 10.