CVE-2021-33845: Splunk Enterprise: The Splunk Enterprise REST API allows enumeration of usernames via the lockout error message
This Splunk advisory covers CVE-2021-33845. Related products: Splunk Enterprise.
- CVE-2021-33845
Key facts
- Vendor rating
- Medium, CVSS 5.3
- CISA KEV
- Not listed (catalogue checked )
- Versions named
- 8.1.7
- Fixed in
- 8.1.7
- Source published
- Source revised
- Listed by VulniPulse
- Record changed
Compiled by VulniPulse from the linked sources. How records are collected and checked.
Related products & platforms
Description
The Splunk Enterprise REST API allows enumeration of usernames via the lockout error message. The potential vulnerability impacts Splunk Enterprise instances before 8.1.7 when configured to repress verbose login errors.
Text from the source record.
- 8.1.7
Official advisory · high-confidence parse· fetched ·verify at source
How to fix CVE-2021-33845
Upgrade to a fixed release named by Splunk:
- 8.1.7
Support dates for the fixed release lines
- Splunk Enterprise 8.1: support ended
More Splunk advisories
CVE-2026-105482Oct 28, 2026Vulnerabilities in Node.jsCVE-2026-76302Oct 21, 2026Splunk: As part of Cisco's ongoing commitment to proactive security and product qualityCVE-2026-76301Oct 21, 2026Splunk: As part of Cisco's ongoing commitment to proactive security and product qualityCVE-2026-76300Oct 21, 2026Splunk: As part of Cisco's ongoing commitment to proactive security and product qualityCVE-2026-76299Oct 21, 2026Splunk: As part of Cisco's ongoing commitment to proactive security and product qualityCVE-2026-76298Oct 21, 2026In Splunk Enterprise versions below 10.4.4 and 10.2.8, a user who does not hold
Get an email when Splunk Enterprise publishes the next one.
See Splunk Enterprise's last 90 days of advisories first. Then choose one product with live alerts free for life, or a free month of real-time alerts on everything with the severity, the fixed version and the vendor's link (card needed, then US$15/month; we email you before the first charge).
iPhone and Android apps · New on the App Store
Monitor future Splunk CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 34 official vendor sources and 160+ reviewed platform categories.