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Description

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.

PUBLISHED Reserved 2025-10-08 | Published 2026-05-20 | Updated 2026-05-20 | Assigner cisco




HIGH: 7.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem types

The product does not validate or incorrectly validates input that can affect the control flow or data flow of a program.

Product status

10.2 (custom) before 10.2.2
affected

10.0 (custom) before 10.0.5
affected

9.4 (custom) before 9.4.11
affected

9.3 (custom) before 9.3.12
affected

10.4.2603 (custom) before 10.4.2603.1
affected

10.3.2512 (custom) before 10.3.2512.9
affected

10.2.2510 (custom) before 10.2.2510.11
affected

10.1.2507 (custom) before 10.1.2507.21
affected

10.0.2503 (custom) before 10.0.2503.13
affected

9.3.2411 (custom) before 9.3.2411.129
affected

Credits

Alex Hordijk (hordalex)

References

advisory.splunk.com/advisories/SVD-2026-0504

cve.org (CVE-2026-20240)

nvd.nist.gov (CVE-2026-20240)

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