{"id":"CVE-2026-76354","state":"PUBLISHED","title":"Path Traversal through Search Head Clustering in Splunk Enterprise","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 affect system integrity and availability by sending a crafted Representational State Transfer (REST) API request that deletes or temporarily overwrites files writable by the user account running Splunk Enterprise processes on a non-captain search head cluster member. The vulnerability is possible because Search Head Clustering bundle replication does not validate the name of a replicated bundle file or neutralize NUL bytes before constructing the member bundle path. For more information see About search head clustering (https://help.splunk.com/en/splunk-enterprise/administer/distributed-search/10.4/overview-of-search-head-clustering/about-search-head-clustering), Define roles on the Splunk platform with capabilities (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.4/manage-splunk-platform-users-and-roles/define-roles-on-the-splunk-platform-with-capabilities), and Secure Splunk Enterprise service accounts (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/9.0/install-splunk-enterprise-securely/secure-splunk-enterprise-service-accounts) in the Splunk documentation.","publishedAt":"2026-08-19T21:34:47.365Z","updatedAt":"2026-08-20T16:27:35.131Z","severity":{"score":8.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","source":"cisco"},"assigner":"cisco","products":["Splunk Splunk Enterprise"],"affected":[{"vendor":"Splunk","product":"Splunk Enterprise","versions":[{"version":"10.4","status":"affected","lessThan":"10.4.2","versionType":"custom"},{"version":"10.2","status":"affected","lessThan":"10.2.6","versionType":"custom"},{"version":"10.0","status":"affected","lessThan":"10.0.9","versionType":"custom"},{"version":"9.4","status":"affected","lessThan":"9.4.14","versionType":"custom"}]}],"references":["https://advisory.splunk.com/advisories/SVD-2026-0801"],"weaknesses":["CWE-158"],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/76xxx/CVE-2026-76354.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-76354","state":"PUBLISHED","datePublished":"2026-08-19T21:34:47.365Z","dateUpdated":"2026-08-20T16:27:35.131Z","assignerShortName":"cisco","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateReserved":"2026-08-19T12:02:03.628Z"},"containers":{"cna":{"title":"Path Traversal through Search Head Clustering in Splunk Enterprise","descriptions":[{"lang":"en","value":"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 affect system integrity and availability by sending a crafted Representational State Transfer (REST) API request that deletes or temporarily overwrites files writable by the user account running Splunk Enterprise processes on a non-captain search head cluster member. The vulnerability is possible because Search Head Clustering bundle replication does not validate the name of a replicated bundle file or neutralize NUL bytes before constructing the member bundle path. For more information see About search head clustering (https://help.splunk.com/en/splunk-enterprise/administer/distributed-search/10.4/overview-of-search-head-clustering/about-search-head-clustering), Define roles on the Splunk platform with capabilities (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.4/manage-splunk-platform-users-and-roles/define-roles-on-the-splunk-platform-with-capabilities), and Secure Splunk Enterprise service accounts (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/9.0/install-splunk-enterprise-securely/secure-splunk-enterprise-service-accounts) in the Splunk documentation."}],"affected":[{"vendor":"Splunk","product":"Splunk Enterprise","versions":[{"version":"10.4","status":"affected","lessThan":"10.4.2","versionType":"custom"},{"version":"10.2","status":"affected","lessThan":"10.2.6","versionType":"custom"},{"version":"10.0","status":"affected","lessThan":"10.0.9","versionType":"custom"},{"version":"9.4","status":"affected","lessThan":"9.4.14","versionType":"custom"}]}],"references":[{"url":"https://advisory.splunk.com/advisories/SVD-2026-0801"}],"metrics":[{"cvssV3_1":{"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","version":"3.1","baseScore":8.1,"baseSeverity":"HIGH"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-158","lang":"en","type":"cwe","description":"The software receives input from an upstream component, but it does not neutralize or incorrectly neutralizes NUL characters or null bytes when they are sent to a downstream component."}]}],"providerMetadata":{"shortName":"cisco","orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateUpdated":"2026-08-19T21:34:47.365Z"},"datePublic":"2026-08-19T00:00:00.000Z","source":{"advisory":"SVD-2026-0801"},"solutions":[{"lang":"en","value":"Upgrade Splunk Enterprise to versions 10.4.2, 10.2.6, 10.0.9, and 9.4.14, or higher."}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-76354","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-08-20T16:14:43.529537Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-20T16:27:35.131Z"}}]}}}