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TI-2026-16432 Aliases CVE-2026-20240GHSA-2fmj-cw46-4vrm

Denial of Service through coldToFrozen.sh Script in Splunk Enterprise

Priority LOW 31CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

In Splunk Enterprise versions below 10.2.2, 10.0.5, 9.4.11, and 9.3.12, and Splunk Cloud Platform versions below 10.4.2603.1, 10.3.2512.9, 10.2.2510.11, 10.1.2507.21, 10.0.2503.13, and 9.3.2411.129, a low-privileged user that does not hold the ‘admin’ or ‘power’ Splunk roles could cause a Denial of Service by exploiting the `coldToFrozen.sh` script in the `splunk_archiver` app to rename critical Splunk directories, making the instance non-functional.<br><br>The Denial of Service is possible because of missing input validation in the `coldToFrozen.sh` script, which accepts arbitrary file paths and renames them without restricting operations to safe directories.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00396 34th percentileScored 2026-11-07
Fix Fixed Splunk Enterprise (Splunk): 10.2.2, 10.0.5, 9.4.11 +1Splunk Cloud Platform (Splunk): 10.4.2603.1, 10.3.2512.9, 10.2.2510.11 +3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SplunkSplunk Enterprise10.2 to before 10.2.2; 10.0 to before 10.0.5; 9.4 to before 9.4.11; 9.3 to before 9.3.1210.2.2, 10.0.5, 9.4.11, 9.3.12Patch availableCNA
SplunkSplunk Cloud Platform10.4.2603 to before 10.4.2603.1; 10.3.2512 to before 10.3.2512.9; 10.2.2510 to before 10.2.2510.11; 10.1.2507 to before 10.1.2507.21; 10.0.2503 to before 10.0.2503.13; 9.3.2411 to before 9.3.2411.12910.4.2603.1, 10.3.2512.9, 10.2.2510.11, 10.1.2507.21, 10.0.2503.13, 9.3.2411.129Patch availableCNA
  • Splunk Enterprise VendorSplunk Affected 10.2 to before 10.2.2; 10.0 to before 10.0.5; 9.4 to before 9.4.11; 9.3 to before 9.3.12 Fixed in 10.2.2, 10.0.5, 9.4.11, 9.3.12 Patch available CNA
  • Splunk Cloud Platform VendorSplunk Affected 10.4.2603 to before 10.4.2603.1; 10.3.2512 to before 10.3.2512.9; 10.2.2510 to before 10.2.2510.11; 10.1.2507 to before 10.1.2507.21; 10.0.2503 to before 10.0.2503.13; 9.3.2411 to before 9.3.2411.129 Fixed in 10.4.2603.1, 10.3.2512.9, 10.2.2510.11, 10.1.2507.21, 10.0.2503.13, 9.3.2411.129 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*9.3.0 to before 9.3.12; 9.4.0 to before 9.4.11; 10.0.0 to before 10.0.5; 10.2.0 to before 10.2.2VulnerableSplunk
cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*9.3.2411 to before 9.3.2411.129; 10.0.2503 to before 10.0.2503.13; 10.1.2507 to before 10.1.2507.21; 10.2.2510 to before 10.2.2510.11; 10.3.2512 to before 10.3.2512.9VulnerableSplunk
cpe:2.3:a:splunk:splunk_cloud_platform:10.4.2603:*:*:*:*:*:*:*10.4.2603VulnerableSplunk
  • cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* Versions 9.3.0 to before 9.3.12; 9.4.0 to before 9.4.11; 10.0.0 to before 10.0.5; 10.2.0 to before 10.2.2 Vulnerable ·Splunk
  • cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:* Versions 9.3.2411 to before 9.3.2411.129; 10.0.2503 to before 10.0.2503.13; 10.1.2507 to before 10.1.2507.21; 10.2.2510 to before 10.2.2510.11; 10.3.2512 to before 10.3.2512.9 Vulnerable ·Splunk
  • cpe:2.3:a:splunk:splunk_cloud_platform:10.4.2603:*:*:*:*:*:*:* Versions 10.4.2603 Vulnerable ·Splunk

Remediation

  • Fix · CNA Splunk Enterprise (Splunk) Fixed in 10.2.2, 10.0.5, 9.4.11, 9.3.12
  • Fix · CNA Splunk Cloud Platform (Splunk) Fixed in 10.4.2603.1, 10.3.2512.9, 10.2.2510.11, 10.1.2507.21, 10.0.2503.13, 9.3.2411.129

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-20240
  2. 2026-10-03 Alias added: GHSA-2fmj-cw46-4vrm

References

Advisory 1

  • TI-2026-16444 Unauthenticated Arbitrary File Creation and Truncation in a PostgreSQL Sidecar Service Endpoint in Splunk Enterprise KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-00154 The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly… KEVCVSS 3.1HIGH 7.5
  • TI-2023-24841 Remote code execution (RCE) in Splunk Enterprise through Insecure XML Parsing CVSS 3.1HIGH 8.8
  • TI-2023-15979 ‘edit_user’ Capability Privilege Escalation CVSS 3.1HIGH 8.8
  • TI-2024-30707 Remote Code Execution (RCE) due to insecure session storage configuration in Splunk Enterprise on Windows CVSS 3.1HIGH 8.8
  • TI-2022-21345 Reflected Cross-Site Scripting via the radio template in Splunk Enterprise CVSS 3.1HIGH 8.8
See all 297 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences