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CVE-2026-20298: Sensitive Information Disclosure through the storage/passwords REST Endpoint in Splunk Enterprise

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-15 · updated 2026-07-24
• Weakness: CWE-200

Description

In Splunk Enterprise versions below 10.4.1, 10.2.5, 10.0.8, and 9.4.13, and Splunk Cloud Platform versions below 10.5.2605.0, 10.4.2604.6, 10.3.2512.15, 10.2.2510.18, and 10.1.2507.24, a low-privileged user that does not hold the 'admin' or 'power' Splunk roles could view stored credential hashes when they access the `/servicesNS/-/-/storage/passwords` REST endpoint through the `|rest` Search Processing Language (SPL) command.<br><br>The exposure happens because the `|rest` SPL command returns the `encr_password` field in the results of the `/servicesNS/-/-/storage/passwords` REST endpoint.

Affected products

• Splunk Enterprise: from 9.4.0 before 9.4.13; from 10.0.0 before 10.0.8; from 10.2.0 before 10.2.5; 10.4.0 — fixed in 10.0.8, 10.2.5, 9.4.13
• Splunk Cloud Platform: from 10.1.2507 before 10.1.2507.24; from 10.2.2510 before 10.2.2510.18; from 10.3.2512 before 10.3.2512.15; from 10.4.2604 before 10.4.2604.6 — fixed in 10.1.2507.24, 10.2.2510.18, 10.3.2512.15, 10.4.2604.6

How to fix

Upgrade to a fixed version: Splunk Enterprise 10.0.8, 10.2.5, 9.4.13; Splunk Cloud Platform 10.1.2507.24, 10.2.2510.18, 10.3.2512.15, 10.4.2604.6. Check the vendor advisory for mitigations.

References

• https://advisory.splunk.com/advisories/SVD-2026-0704

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