CVE-2026-76338

highpriority · track · 0EPSS 0.005 · 40 %ileDENLUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.47% (40th) EPSS

CVSS 8.1 · high

Is it mine?

15 products

Check your exposure

Who says so?

3 sources

cert_bund · ncsc_nl · nvd

EPSS · scored 2026-10-22

In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, an unauthenticated user who has access to a trusted distributed search private key could forge an administrative session token, access all relevant data, affect system integrity, and disrupt service availability. The vulnerability is possible because the distributed search authentication token endpoint does not require a signed request to identify a configured search peer, allowing the request to fall back to shared local key material. For more information see About distributed search (https://help.splunk.com/en/splunk-enterprise/administer/distributed-search/10.4/overview-of-distributed-search/about-distributed-search) and authentication.conf (https://help.splunk.com/en/splunk-enterprise/administer/admin-manual/10.4/configuration-file-reference/10.4.2-configuration-file-reference/authentication.conf) in Splunk documentation.

cvss

Technical severity, 0–10. One row per scoring source.

8.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · psirt@cisco.com USexploitability 2.2 · impact 5.9

v3.17.4highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · NCSC-NL NL

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287US

affected products (15)

Products and version ranges known to be affected.

Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Splunk Splunk Enterprise< 10.0.9cert_bundDE
Splunk Splunk Enterprise< 10.2.6cert_bundDE
Splunk Splunk Enterprise< 10.4.2cert_bundDE
Splunk Splunk Enterprise< 9.4.14cert_bundDE
Splunk Splunk Splunk Enterprise <10.0.9< 10.0.9cert_bundDE
Splunk Splunk Splunk Enterprise <10.2.6< 10.2.6cert_bundDE
Splunk Splunk Splunk Enterprise <10.4.2< 10.4.2cert_bundDE
Splunk Splunk Splunk Enterprise <9.4.14< 9.4.14cert_bundDE
Splunk Splunk Enterprise≤ vers:unknown/*ncsc_nlNL
Splunk Splunk Secure Gateway≤ vers:unknown/*ncsc_nlNL
splunk splunk10.0.0 → 10.0.9nvdUScpe:2.3:a:splunk:splunk:*:*:*:*:*:*:*:*
splunk splunk10.2.0 → 10.2.6nvdUScpe:2.3:a:splunk:splunk:*:*:*:*:*:*:*:*
splunk splunk10.4.0 → 10.4.2nvdUScpe:2.3:a:splunk:splunk:*:*:*:*:*:*:*:*
splunk splunk9.4.0 → 9.4.14nvdUScpe:2.3:a:splunk:splunk:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2026-0322Kwetsbaarheden verholpen in Splunk Enterprise door SplunkNL2026-08-21csaf · ncsc_nlNL
Splunk heeft meerdere kwetsbaarheden verholpen in Splunk Enterprise, specifiek in versies vóór 10.4.2, 10.2.6, 10.0.9 en 9.4.14.
WID-SEC-W-2026-2929Splunk Splunk Enterprise: Mehrere SchwachstellenDeutsch2026-08-19csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Splunk Splunk Enterprise ausnutzen, um beliebigen Code auszuführen, Berechtigungen zu erweitern, Sicherheitsmaßnahmen zu umgehen, SQL-Injection-, serverseitige Request-Forgery- und Cross-Site-Scripting-Angriffe durchzuführen, sensible Informationen offenzulegen oder zu manipulieren, Denial-of-Service-Zustände auszulösen oder andere, nicht näher spezifizierte Angriffe durchzuführen.

sources

Which sources assert this record, and when.

cert_bund ncsc_nl nvd NVD CVE.org MITRE

published 2026-08-19modified 2026-08-27

references (1) nvd

External citations — patches, advisories, analysis.

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

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan