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CVE-2026-20205

In Splunk MCP Server app versions below 1.0.3 , a user who holds a role with access to the Splunk `_internal` index or possesses the high-privilege capability `mcp_tool_admin` could view users session and authorization tokens in clear text.<br><br>The vulnerability would require either local access to the log files or administrative access to internal indexes, which by default only the admin role receives. <br><br>Review roles and capabilities on your instance and restrict internal index access
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5eba4b953631481c978a4756ded6f34c9324c95334988b2575a8fb3c87615efa
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"Splunk MCP Server","vendor":"Splunk","versions":[{"lessThan":"1.0.3","status":"affected","version":"1.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ccffa47a69ab8f81b37b67319d437dfb16d0b5e2047879d8c68cc765977cc20d · sha256:338c3b1f83b3bd0c… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.2,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ccffa47a69ab8f81b37b67319d437dfb16d0b5e2047879d8c68cc765977cc20d · sha256:338c3b1f83b3bd0c… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-532","description":"Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information.","lang":"en","type":"cwe"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ccffa47a69ab8f81b37b67319d437dfb16d0b5e2047879d8c68cc765977cc20d · sha256:338c3b1f83b3bd0c… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"url":"https://advisory.splunk.com/advisories/SVD-2026-0407"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ccffa47a69ab8f81b37b67319d437dfb16d0b5e2047879d8c68cc765977cc20d · sha256:338c3b1f83b3bd0c… · /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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