CVE-2026-76323: splunk Input Validation Flaw — Fix

Description

In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, a user who does not hold the "admin" or "power" Splunk roles could bypass Search Processing Language (SPL) safeguards for risky commands through the Job Details dashboard. The injected SPL could run using the permissions of an authenticated user who opens a crafted Job Details dashboard link. This could allow access to all relevant data and affect system integrity within those permissions. The vulnerability is possible because the Job Details dashboard does not correctly neutralize a caller-supplied search identifier before placing it into SPL searches. The vulnerability requires the attacker to phish the user by tricking them into opening the crafted link. The user who does not hold the "admin" or "power" Splunk roles should not be able to exploit the vulnerability at will. For more information see About jobs and job management (https://help.splunk.com/en/splunk-enterprise/search/search-manual/10.4/manage-jobs/about-jobs-and-job-management) in the Splunk documentation.

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CVSS v3.1 Score

6.4

MEDIUM

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

EPSS — Exploit Prediction

0.0023

Probability of exploitation

0.14%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-20 Improper Input Validation

Affected Products

Vendor	Product	Versions
splunk	splunk	9.4.0 — 9.4.14
splunk	splunk	10.0.0 — 10.0.9
splunk	splunk	10.2.0 — 10.2.6
splunk	splunk	10.4.0 — 10.4.2

References

Advisories & Patches

https://advisory.splunk.com/advisories/SVD-2026-0801

Frequently Asked Questions

What is CVE-2026-76323? +

In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, a user who does not hold the "admin" or "power" Splunk roles could bypass Search Processing Language (SPL) safeguards for risky commands through the Job Details dashboard. The injected SPL could run using the permissions of an authenticated user who opens a crafted Job Details dashboard link. This could allow access to all relevant data and affect system integrity within those permissions. The vulnerability is possible because the Job Details dashboard does not correctly neutralize a caller-supplied search identifier before placing it into SPL searches. The vulnerability requires the attacker to phish the user by tricking them into opening the crafted link. The user who does not hold the "admin" or "power" Splunk roles should not be able to exploit the vulnerability at will. For more information see About jobs and job management (https://help.splunk.com/en/splunk-enterprise/search/search-manual/10.4/manage-jobs/about-jobs-and-job-management) in the Splunk documentation. It has a CVSS v3.1 base score of 6.4 (MEDIUM).

How severe is CVE-2026-76323? +

CVE-2026-76323 has a CVSS v3.1 score of 6.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0023, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-76323? +

CVE-2026-76323 affects products from splunk, specifically: splunk. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-76323? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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