Authenticated service interruption via arbitrary path renames
Published May 20, 2026 · Updated May 20, 2026
Improper input validation in Splunk Enterprise allows remote authenticated users to interrupt service through the Splunk Archiver app. The coldToFrozen.sh script accepts arbitrary file paths and renames them without restricting operations to safe directories. A low-privileged account without the admin or power role can rename critical directories and leave the instance non-functional; Splunk's updated advisory excludes Splunk Cloud Platform.
Summary
What happened
Improper input validation in Splunk Enterprise allows remote authenticated users to interrupt service through the Splunk Archiver app. The coldToFrozen.sh script accepts arbitrary file paths and renames them without restricting operations to safe directories. A low-privileged account without the admin or power role can rename critical directories and leave the instance non-functional; Splunk's updated advisory excludes Splunk Cloud Platform.
The record
- CVE
- CVE-2026-20240
- Published
- May 20, 2026
- Updated
- May 20, 2026
- Vendor
- Zoom Video Communications, Inc.
- Product
- Splunk Enterprise
- Classifications
- CWE-20, T1499
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 20, 2026CVE publishedPublication date reported by the CVE source.
- May 20, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0 <10.0.5
- Affected versionversion=10.2 <10.2.2
- Affected versionversion=9.3 <9.3.12
- Affected versionversion=9.4 <9.4.11
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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