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.

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.

EPSS: 0.002 (7.0th percentile) — read the EPSS interpretation.

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.

Affected products

Palo Alto Networks Chronosphere Chronocollector — versions 0.0.0
Paloaltonetworks Chronosphere_collector

Weakness classification (CWE)

CWE-497 — Exposure of Sensitive System Information to an Unauthorized Control Sphere

References

psirt@paloaltonetworks.com (vendor-advisory, Vendor Advisory)

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.