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CVE-2026-20139

In Splunk Enterprise versions below 10.2.0, 10.0.2, 9.4.8, 9.3.9, and 9.2.12, and Splunk Cloud Platform versions below 10.2.2510.3, 10.1.2507.8, 10.0.2503.9, and 9.3.2411.121, a low-privileged user that does not hold the "admin" or "power" Splunk roles could craft a malicious payload into the `realname`, `tz`, or `email` parameters of the `/splunkd/__raw/services/authentication/users/username` REST API endpoint when they change a password. This could potentially lead to a client‑side denial‑of‑s
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e4b24f17e6dcb3278de963cbb86d799976b2a345f45be5cce3f7bfb4f8b08b04
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"product":"Splunk Cloud Platform","vendor":"Splunk","versions":[{"lessThan":"10.2.2510.3","status":"affected","version":"10.2.2510","versionType":"custom"},{"lessThan":"10.1.2507.8","status":"affected","version":"10.1.2507","versionType":"custom"},{"lessThan":"10.0.2503.9","status":"affected","version":"10.0.2503","versionType":"custom"},{"lessThan":"9.3.2411.121","status":"affected","version":"9.3.2411","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6ef90488a0ed189cacd2b5ed57dffb6cfe8ee961a0335ace5da2f783dda7b429 · sha256:b1373540784bd4c1… · /containers/cna/affected/1

{"product":"Splunk Enterprise","vendor":"Splunk","versions":[{"lessThan":"10.0.2","status":"affected","version":"10.0","versionType":"custom"},{"lessThan":"9.4.8","status":"affected","version":"9.4","versionType":"custom"},{"lessThan":"9.3.9","status":"affected","version":"9.3","versionType":"custom"},{"lessThan":"9.2.12","status":"affected","version":"9.2","versionType":"custom"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6ef90488a0ed189cacd2b5ed57dffb6cfe8ee961a0335ace5da2f783dda7b429 · sha256:b1373540784bd4c1… · /containers/cna/affected/0
cwe · 2 assertions

{"cweId":"CWE-400","description":"CWE-400 Uncontrolled Resource Consumption","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6ef90488a0ed189cacd2b5ed57dffb6cfe8ee961a0335ace5da2f783dda7b429 · sha256:b1373540784bd4c1… · /containers/adp/0/problemTypes/0/descriptions/0

{"cweId":"CWE-400","description":"The software does not properly control the allocation and maintenance of a limited resource thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.","lang":"en","type":"cwe"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6ef90488a0ed189cacd2b5ed57dffb6cfe8ee961a0335ace5da2f783dda7b429 · sha256:b1373540784bd4c1… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

2 source assertions
{"product":"Splunk Cloud Platform","vendor":"Splunk","versions":[{"lessThan":"10.2.2510.3","status":"affected","version":"10.2.2510","versionType":"custom"},{"lessThan":"10.1.2507.8","status":"affected","version":"10.1.2507","versionType":"custom"},{"lessThan":"10.0.2503.9","status":"affected","version":"10.0.2503","versionType":"custom"},{"lessThan":"9.3.2411.121","status":"affected","version":"9.3.2411","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6ef90488a0ed189cacd2b5ed57dffb6cfe8ee961a0335ace5da2f783dda7b429 · sha256:b1373540784bd4c1… · /containers/cna/affected/1
{"product":"Splunk Enterprise","vendor":"Splunk","versions":[{"lessThan":"10.0.2","status":"affected","version":"10.0","versionType":"custom"},{"lessThan":"9.4.8","status":"affected","version":"9.4","versionType":"custom"},{"lessThan":"9.3.9","status":"affected","version":"9.3","versionType":"custom"},{"lessThan":"9.2.12","status":"affected","version":"9.2","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6ef90488a0ed189cacd2b5ed57dffb6cfe8ee961a0335ace5da2f783dda7b429 · sha256:b1373540784bd4c1… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":4.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6ef90488a0ed189cacd2b5ed57dffb6cfe8ee961a0335ace5da2f783dda7b429 · sha256:b1373540784bd4c1… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-400","description":"CWE-400 Uncontrolled Resource Consumption","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6ef90488a0ed189cacd2b5ed57dffb6cfe8ee961a0335ace5da2f783dda7b429 · sha256:b1373540784bd4c1… · /containers/adp/0/problemTypes/0/descriptions/0
{"cweId":"CWE-400","description":"The software does not properly control the allocation and maintenance of a limited resource thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.","lang":"en","type":"cwe"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6ef90488a0ed189cacd2b5ed57dffb6cfe8ee961a0335ace5da2f783dda7b429 · sha256:b1373540784bd4c1… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"url":"https://advisory.splunk.com/advisories/SVD-2026-0204"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6ef90488a0ed189cacd2b5ed57dffb6cfe8ee961a0335ace5da2f783dda7b429 · sha256:b1373540784bd4c1… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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