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6006 articles · 245881 vulns · 36/41 feeds (7d)
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7.5
CVE-2026-76288PATCHED
splunk · splunk enterpri

Denial of Service (DoS) through Splunk Web Content-Type Header Parsing in Splunk Enterprise

Description

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.

Affected Products

VendorProductVersions
splunksplunk enterpri10.4, 10.2, 10.0, 9.4

Also Affects

Downstream vendors/products affected by this vulnerability

VendorProductSourceConfidence
splunksplunk enterprisecert_advisory90%

References

  • https://advisory.splunk.com/advisories/SVD-2026-1007

Related News (3 articles)

Tier B
BSI Advisories8h ago
[NEU] [hoch] Splunk Splunk Enterprise: Mehrere Schwachstellen
→ No new info (linked only)
Tier B
CERT-FR22h ago
Multiples vulnérabilités dans les produits Splunk (22 octobre 2026)
→ No new info (linked only)
Tier C
VulDB23h ago
CVE-2026-76288 | Splunk Enterprise up to 9.4.15/10.0.10/10.2.7/10.4.3 JavaScript Logger Endpoint input validation
→ No new info (linked only)

Discussion (0)

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CVSS 3.17.5 HIGH
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA KEV❌ No
Actively exploited❌ No
Patch available
10.4.410.2.810.0.119.4.16
CWECWE-400
PublishedOct 21, 2026
Trending Score51
Source articles3
Independent3
Info Completeness0/14
Missing: cve_id, title, description, vendor, product, versions, cvss, epss, cwe, kev, exploit, patch, iocs, mitre_attack

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HIGHCVE-2026-76290
Denial of Service (DoS) through Unauthenticated Package Downloads over the REST API in Splunk Enterprise
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CRITICALCVE-2026-76302
Security Hardening in Splunk Enterprise - October 2026
Trending: 49
HIGHCVE-2026-76298
Use of Hard-coded Cryptographic Key in the PostgreSQL Sidecar Service in Splunk Enterprise
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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
Oct 21, 2026
Discovered by ZDM
Oct 21, 2026
Patch Available
Oct 22, 2026