01 Record
CVE-2026-76338
Improper Authentication through REST API Distributed Search Token Requests in Splunk Enterprise
HighPUBLISHEDCNA: cisco
CNA base score8.1 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
02 Description
Improper Authentication through REST API Distributed Search Token Requests in Splunk Enterprise
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.46% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 40.2% of scored records. A rank, not a probability.
- NVD base score
- 8.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-08-27.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-08-19 21:34Z2 MO AGO
- Last updated
- 2026-08-27 16:24Z2 MO AGO
- Reserved
- 2026-08-19
- Assigning CNA
- cisco
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.1)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-287Improper AuthenticationClass
- Data version
- 5.2
- Document digest
- f1e89ec62bc26fad06f3aa0947648e00facf6a87aae60a7b7cce96f494ee8d46
05 Affected products
VendorProductVersionsPlatforms
06 References
- advisory.splunk.comhttps://advisory.splunk.com/advisories/SVD-2026-0801
07 Remediation
Upgrade Splunk Enterprise to versions 10.4.2, 10.2.6, 10.0.9, and 9.4.14, or higher. Set `strictPeerNameValidation = true` in `authentication.conf` on every distributed node, then restart Splunk Enterprise.