Palo Alto Networks Security Advisories / CVE-2026-0239

CVE-2026-0239 Chronosphere Chronocollector Information Disclosure Vulnerability

Urgency MODERATE

047910
Severity 4.9 · MEDIUM
Exploit Maturity UNREPORTED
Response Effort MODERATE
Recovery USER
Value Density CONCENTRATED
Attack Vector ADJACENT
Attack Complexity LOW
Attack Requirements NONE
Automatable NO
User Interaction NONE
Product Confidentiality HIGH
Product Integrity NONE
Product Availability NONE
Privileges Required NONE
Subsequent Confidentiality NONE
Subsequent Integrity NONE
Subsequent Availability NONE

Description

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

Product Status

VersionsAffectedUnaffected
Chronosphere Chronocollector < v0.116.0
>= v0.116.0

Required Configuration for Exposure

No special configuration is required to be affected by this issue.

Severity: MEDIUM, Suggested Urgency: MODERATE

CVSS-BT: 4.9 / CVSS-B: 7.1 (CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:C/RE:M/U:Amber)

Exploitation Status

Palo Alto Networks is not aware of any malicious exploitation of this issue.

Weakness Type and Impact

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

CAPEC-37 Retrieve Embedded Sensitive Data

Solution

VersionSuggested Solution
Chronosphere ChronocollectorUpgrade to v0.116.0 or later.

Workarounds and Mitigations

No known workarounds exist for this issue.

Acknowledgments

Palo Alto Networks thanks our internal security research teams for discovering and reporting this issue.

CPE Applicability

Timeline

Initial publication.
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