Chronosphere Chronocollector Information Disclosure Vulnerability

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Summary

CVECVE-2026-0239
StatePUBLISHED
Assignerpalo_alto
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-13 19:16:57 UTC
Updated2026-05-14 16:21:23 UTC
DescriptionAn information disclosure vulnerability in the Chronosphere Chronocollector enables an unauthenticated attacker with network access to the collector service to retrieve sensitive information.

Risk And Classification

Primary CVSS: v4.0 4.9 MEDIUM from [email protected]

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:C/RE:M/U:Amber

EPSS: 0.000250000 probability, percentile 0.073810000 (date 2026-05-25)

Problem Types: CWE-497 | CWE-497 CWE-497 Exposure of Sensitive System Information to an Unauthorized Control Sphere

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary4.9MEDIUMCVSS: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/C...
4.0CNACVSS4.9MEDIUMCVSS: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/A...

CVSS v4.0 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
None
Availability
None
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:C/RE:M/U:Amber

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Palo Alto Networks Chronosphere Chronocollector affected 0.0.0 v0.116.0 custom Not specified

References

ReferenceSourceLinkTags
security.paloaltonetworks.com/CVE-2026-0239 [email protected] security.paloaltonetworks.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Palo Alto Networks thanks our internal security research teams for discovering and reporting this issue. (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-05-13T16:00:00.000ZInitial publication.

Solutions

CNA: Version Suggested Solution Chronosphere Chronocollector Upgrade to v0.116.0 or later.

Workarounds

CNA: No known workarounds exist for this issue.

Exploits

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

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