CVE-2026-76268

criticalpriority · attend · 51OT risk · highEPSS 0.048 · 92 %ileexploit · PoCDENLUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

4.79% (92nd) EPSS

CVSS 9.8 · critical

Is it mine?

12 products

Check your exposure

Who says so?

3 sources

cert_bund · ncsc_nl · nvd

EPSS · scored 2026-10-27

In Splunk Enterprise versions below 10.4.3 and 10.2.7, an unauthenticated user with network access to the Patroni Representational State Transfer (REST) Application Programming Interface (API) on a search head cluster member could execute attacker-controlled operating-system commands. The vulnerability is possible because this interface does not require authentication for critical configuration operations. For more information see Sidecar configuration settings (https://help.splunk.com/en/data-management/splunk-enterprise-admin-manual/10.2/splunk-sidecars/sidecar-configuration-settings) in the Splunk documentation. Splunk Enterprise versions 10.0.x and 9.4.x are not affected.

cvss

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

9.8

010

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

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · psirt@cisco.com USexploitability 3.9 · impact 5.9

v3.19.6criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Fsecondary · CVSS-BT (t0sche)

v3.19.8criticalCVSS:3.1/AV:N/AC:L/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: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-306USCWE-306US

exploits (1)

Public proof-of-concept and weaponised exploit code.

murrez/CVE-2026-76268CVE-2026-76268 PoC: Splunk Enterprise SHC Patroni REST unauth RCE — PATCH /config archive_command + POST /restart. Check + mass exploit, OOB POCBIT-76268-OK, CVSS 9.8. https://pocbit.org/pocs/cve-2026-76268PoC · poc_in_github

affected products (12)

Products and version ranges known to be affected.

Splunk Splunk Enterprise <10.0.10all versionscert_bundDE
Splunk Splunk Enterprise <10.2.7all versionscert_bundDE
Splunk Splunk Enterprise <10.4.3all versionscert_bundDE
Splunk Splunk Enterprise <9.4.15all versionscert_bundDE
Splunk Splunk Enterprise< 10.0.10cert_bundDE
Splunk Splunk Enterprise< 10.2.7cert_bundDE
Splunk Splunk Enterprise< 10.4.3cert_bundDE
Splunk Splunk Enterprise< 9.4.15cert_bundDE
Splunk Splunk Enterprise≤ vers:unknown/*ncsc_nlNL
Splunk Splunk Secure Gateway≤ vers:unknown/*ncsc_nlNL
splunk splunk10.2.0 → 10.2.7nvdUScpe:2.3:a:splunk:splunk:*:*:*:*:*:*:*:*
splunk splunk10.4.0 → 10.4.3nvdUScpe:2.3:a:splunk:splunk:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2026-0412Kwetsbaarheden verholpen in Splunk EnterpriseNL2026-10-09csaf · ncsc_nlNL
Splunk heeft meerdere kwetsbaarheden verholpen in Splunk Enterprise.
WID-SEC-W-2026-3799Splunk Enterprise: Mehrere SchwachstellenDeutsch2026-10-07csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Splunk Enterprise ausnutzen, um beliebigen Code auszuführen – einschließlich Betriebssystembefehle mit Root-Rechten –, erweiterte Rechte zu erlangen, Sicherheitsmaßnahmen zu umgehen, SQL-Injection durchzuführen sowie Daten zu manipulieren oder offenzulegen.

sources

Which sources assert this record, and when.

cert_bund ncsc_nl nvd NVD CVE.org MITRE

published 2026-10-07modified 2026-10-14

references (1) nvd

External citations — patches, advisories, analysis.

https://advisory.splunk.com/advisories/SVD-2026-1001Vendor AdvisoryMitigation

scry

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