{"id":"CVE-2026-20138","state":"PUBLISHED","title":"Sensitive Information Disclosure in \"_internal\" index in Splunk Enterprise","description":"In Splunk Enterprise versions below 10.2.0, 10.0.2, 9.4.7, 9.3.9, and 9.2.11, a user of a Splunk Search Head Cluster (SHC) deployment who holds a role with access to the Splunk `_internal` index could view the  `integrationKey`, `secretKey`, and `appSecretKey` secrets, generated by [Duo Two-Factor Authentication for Splunk Enterprise](https://duo.com/docs/splunk), in plain text.","publishedAt":"2026-02-18T16:45:33.870Z","updatedAt":"2026-02-26T14:44:16.462Z","severity":{"score":6.8,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","source":"cisco"},"assigner":"cisco","products":["Splunk Splunk Enterprise"],"affected":[{"vendor":"Splunk","product":"Splunk Enterprise","versions":[{"version":"10.0","status":"affected","lessThan":"10.0.2","versionType":"custom"},{"version":"9.4","status":"affected","lessThan":"9.4.7","versionType":"custom"},{"version":"9.3","status":"affected","lessThan":"9.3.9","versionType":"custom"},{"version":"9.2","status":"affected","lessThan":"9.2.11","versionType":"custom"}]}],"references":["https://advisory.splunk.com/advisories/SVD-2026-0203"],"weaknesses":["CWE-532"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/20xxx/CVE-2026-20138.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-20138","state":"PUBLISHED","datePublished":"2026-02-18T16:45:33.870Z","dateUpdated":"2026-02-26T14:44:16.462Z","assignerShortName":"cisco","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateReserved":"2025-10-08T11:59:15.381Z"},"containers":{"cna":{"title":"Sensitive Information Disclosure in \"_internal\" index in Splunk Enterprise","descriptions":[{"lang":"en","value":"In Splunk Enterprise versions below 10.2.0, 10.0.2, 9.4.7, 9.3.9, and 9.2.11, a user of a Splunk Search Head Cluster (SHC) deployment who holds a role with access to the Splunk `_internal` index could view the  `integrationKey`, `secretKey`, and `appSecretKey` secrets, generated by [Duo Two-Factor Authentication for Splunk Enterprise](https://duo.com/docs/splunk), in plain text."}],"affected":[{"vendor":"Splunk","product":"Splunk Enterprise","versions":[{"version":"10.0","status":"affected","lessThan":"10.0.2","versionType":"custom"},{"version":"9.4","status":"affected","lessThan":"9.4.7","versionType":"custom"},{"version":"9.3","status":"affected","lessThan":"9.3.9","versionType":"custom"},{"version":"9.2","status":"affected","lessThan":"9.2.11","versionType":"custom"}]}],"references":[{"url":"https://advisory.splunk.com/advisories/SVD-2026-0203"}],"metrics":[{"cvssV3_1":{"vectorString":"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.1","baseScore":6.8,"baseSeverity":"MEDIUM"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-532","lang":"en","type":"cwe","description":"Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information."}]}],"providerMetadata":{"shortName":"cisco","orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateUpdated":"2026-02-18T16:45:33.870Z"},"datePublic":"2026-02-18T00:00:00.000Z","source":{"advisory":"SVD-2026-0203"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-20138","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2026-02-19T04:55:47.278267Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-532","lang":"en","type":"CWE","description":"CWE-532 Insertion of Sensitive Information into Log File"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-26T14:44:16.462Z"}}]}}}