CVE-2026-0239: An information disclosure vulnerability in the Chronosphere Chronocollector enables an unauthenticated attacke

Q: How do I fix CVE-2026-0239?

chronosphere collector: upgrade to 0.116.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-0239 being exploited?

CVE-2026-0239 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-0239 affect?

CVE-2026-0239 affects chronosphere collector. Severity is medium (CVSS 6.5). An information disclosure vulnerability in the Chronosphere Chronocollector enables an unauthenticated attacker with network access to the collector service to retrieve sensitive information.

Q: How urgent is CVE-2026-0239?

Priority 24/100. No elevated risk signals yet.

Routine

MEDIUM 6.5UPGRADE

CVE-2026-0239 is a medium-severity flaw (CVSS 6.5) affecting chronosphere collector. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 93%)
CISA exploited list	No
Weakness	CWE-497
Published	2026-05-13
Last modified	2026-10-26

Publisher (CNA): Palo Alto Networks, Inc. · Vendor: paloaltonetworks

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-13 19:16 UTCPublished CVE record published
2026-10-26 14:10 UTCUpdated Record last modified

paloaltonetworks chronosphere collector UPGRADE

Affected: < 0.116.0

Fixed in: 0.116.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy chronosphere-collector || rpm -q chronosphere-collector || chronosphere-collector --version

2. UPGRADE to 0.116.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade chronosphere-collector

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade chronosphere-collector

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-0239?

chronosphere collector: upgrade to 0.116.0. Exact commands for each OS are on this page.

Is CVE-2026-0239 being exploited?

CVE-2026-0239 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-0239 affect?

CVE-2026-0239 affects chronosphere collector. Severity is medium (CVSS 6.5). An information disclosure vulnerability in the Chronosphere Chronocollector enables an unauthenticated attacker with network access to the collector service to retrieve sensitive information.

How urgent is CVE-2026-0239?

Priority 24/100. No elevated risk signals yet.

References

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