5.4

CVE-2026-76347: splunk Server-Side Request Forgery (SSRF)

CVSS: 5.4v3.1MediumAnalyzed
Published 19-08-2026Last modified 20-08-2026
Open JSON

Vulnerability summary

CVE-2026-76347 is a medium (CVSS 5.4) Server-Side Request Forgery (SSRF) vulnerability in splunk. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 19.9% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.4/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.29%
0%100%
Low · +0.08 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 19-08-2026
    PublishedVulnerability first disclosed.
  2. 20-08-2026
    Last modifiedVulnerability information updated.

Description

In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, and Splunk Secure Gateway versions below 3.10.9, 3.9.23, and 3.8.70, a user who does not hold the "admin" or "power" Splunk roles could use Server-Side Request Forgery (SSRF) in report notifications to send system-authenticated requests to internal Splunk services, which could allow for changes to Search Head Cluster state and a denial of service. The vulnerability is possible because Splunk Secure Gateway does not validate report notification path values before it sends internal requests.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.29%

Chance of exploitation in the next 30 days

Percentile

20%

Versus all other CVEs

30-day change

+0.08 pp

From 0.21% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.29%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Splunk3 products
  • splunk≥ 9.4.0, < 9.4.14 | ≥ 10.0.0, < 10.0.9 | ≥ 10.2.0, < 10.2.6 | ≥ 10.4.0, < 10.4.2
  • splunk enterprise≥ 10.4, < 10.4.2 | ≥ 10.2, < 10.2.6 | ≥ 10.0, < 10.0.9 | ≥ 9.4, < 9.4.14
  • splunk_secure_gateway≥ 3.10, < 3.10.9 | ≥ 3.9, < 3.9.23 | ≥ 3.8, < 3.8.70 | ≥ 3.8.0, < 3.8.70 | ≥ 3.9.0, < 3.9.23 | ≥ 3.10.0, < 3.10.9

1 vendor · 3 products

References

1 links