CVE-2026-76288
highIn Splunk Enterprise versions below 10.4.4, 10.2.8, 10.0.11, and 9.4.16, an unauthenticated user could send a single crafted request to the Splunk Web JavaScri…
Vendor / product: Splunk — splunk
In Splunk Enterprise versions below 10.4.4, 10.2.8, 10.0.11, and 9.4.16, an unauthenticated user could send a single crafted request to the Splunk Web JavaScript logger endpoint and cause Splunk Web to stop responding to requests. Splunk Web remains unavailable until Splunk Enterprise is restarted. The vulnerability is possible because Splunk Web does not limit request-header parsing before processing the request.
CVSS
7.5
7.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (psirt@cisco.com)
Timeline (UTC)
Published: 2026-10-21 23:17
Modified: 2026-10-30 20:47
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-11-03 07:34 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
splunk / splunk ≥9.4.0 <9.4.16, ≥10.0.0 <10.0.11, ≥10.2.0 <10.2.8, ≥10.4.0 <10.4.4
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://advisory.splunk.com/advisories/SVD-2026-1007
Patch / mitigation: https://advisory.splunk.com/advisories/SVD-2026-1007
References
- https://advisory.splunk.com/advisories/SVD-2026-1007 psirt@cisco.com
Data sources
NVD CVE API 2.0 — fetched 2026-11-03 07:34 UTC · record ↗