{"id":"CVE-2026-20239","state":"PUBLISHED","title":"Sensitive Information Disclosure through Log Files in Splunk Enterprise","description":"In Splunk Enterprise versions below 10.2.2 and 10.0.5, and Splunk Cloud Platform versions below 10.3.2512.8, 10.2.2510.11, 10.1.2507.21, and 10.0.2503.13, a user with a role that has access to the `_internal` index could view session cookies and response bodies that contain sensitive data.","publishedAt":"2026-05-20T16:32:12.678Z","updatedAt":"2026-05-21T03:55:38.324Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"cisco"},"assigner":"cisco","products":["Splunk Splunk Enterprise","Splunk Splunk Cloud Platform"],"affected":[{"vendor":"Splunk","product":"Splunk Enterprise","versions":[{"version":"10.2","status":"affected","lessThan":"10.2.2","versionType":"custom"},{"version":"10.0","status":"affected","lessThan":"10.0.5","versionType":"custom"}]},{"vendor":"Splunk","product":"Splunk Cloud Platform","versions":[{"version":"10.3.2512","status":"affected","lessThan":"10.3.2512.8","versionType":"custom"},{"version":"10.2.2510","status":"affected","lessThan":"10.2.2510.11","versionType":"custom"},{"version":"10.1.2507","status":"affected","lessThan":"10.1.2507.21","versionType":"custom"},{"version":"10.0.2503","status":"affected","lessThan":"10.0.2503.13","versionType":"custom"}]}],"references":["https://advisory.splunk.com/advisories/SVD-2026-0503"],"weaknesses":["CWE-532"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/20xxx/CVE-2026-20239.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-20239","state":"PUBLISHED","datePublished":"2026-05-20T16:32:12.678Z","dateUpdated":"2026-05-21T03:55:38.324Z","assignerShortName":"cisco","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateReserved":"2025-10-08T11:59:15.400Z"},"containers":{"cna":{"title":"Sensitive Information Disclosure through Log Files in Splunk Enterprise","descriptions":[{"lang":"en","value":"In Splunk Enterprise versions below 10.2.2 and 10.0.5, and Splunk Cloud Platform versions below 10.3.2512.8, 10.2.2510.11, 10.1.2507.21, and 10.0.2503.13, a user with a role that has access to the `_internal` index could view session cookies and response bodies that contain sensitive data."}],"affected":[{"vendor":"Splunk","product":"Splunk Enterprise","versions":[{"version":"10.2","status":"affected","lessThan":"10.2.2","versionType":"custom"},{"version":"10.0","status":"affected","lessThan":"10.0.5","versionType":"custom"}]},{"vendor":"Splunk","product":"Splunk Cloud Platform","versions":[{"version":"10.3.2512","status":"affected","lessThan":"10.3.2512.8","versionType":"custom"},{"version":"10.2.2510","status":"affected","lessThan":"10.2.2510.11","versionType":"custom"},{"version":"10.1.2507","status":"affected","lessThan":"10.1.2507.21","versionType":"custom"},{"version":"10.0.2503","status":"affected","lessThan":"10.0.2503.13","versionType":"custom"}]}],"references":[{"url":"https://advisory.splunk.com/advisories/SVD-2026-0503"}],"metrics":[{"cvssV3_1":{"vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1","baseScore":7.5,"baseSeverity":"HIGH"},"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":"2026-05-20T16:32:12.678Z"},"datePublic":"2026-05-20T00:00:00.000Z","source":{"advisory":"SVD-2026-0503"},"credits":[{"lang":"en","value":"Charlie Huggard, Splunk"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-20T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-20239"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-21T03:55:38.324Z"}}]}}}