CVE-2026-84473: Kiteworks ownCloud · Improper Restriction of Excessive Authentication Attempts
Affects Kiteworks ownCloudSource CVE Database V5
Not known to be exploited : upgrade to 11.1.0 soon.
Data as of 6 Nov 2026, 18:35 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
Thin evidence
One scorer or none- Patch
- Available – fixed in 11.1.0
Exploitation evidence
Disclosed: evidence found.
CVE published 6 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.
What to do
Upgrade Kiteworks ownCloud to 11.1.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| KiteworksownCloud | Affected
| Fixed in
|
AI-suggested
Upgrade affected ownCloud server installations to version 11.1.0 or later, where this vulnerability has been fixed. No other mitigation or temporary workaround is indicated in the available data.
Description
CVE-2026-84473 is an authentication bypass vulnerability in Kiteworks ownCloud server versions 10.16.3 up to but not including 11.1.0. It allows unauthenticated remote attackers to perform unlimited online password guessing attacks against WebDAV accounts by repeatedly sending HTTP Basic Authentication requests to the WebDAV endpoint. This vulnerability is due to improper restriction of excessive authentication attempts, lacking brute-force protection.