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CVE-2026-84473

Exploited
No known exploitation
Fix
Fixed in 11.1.0
Who is exposed
Not reported

Do first: Upgrade to a fixed version: 11.1.0.

Published
Last modified
0/100 · provisional
1 proof of concept on GitHub

Summary

An unauthenticated remote attacker can make unlimited password guesses against WebDAV accounts in ownCloud Server by sending repeated HTTP Basic Authentication requests to its WebDAV endpoint, because the endpoint has no brute-force protection. The flaw is in the WebDAV endpoint itself, so it is reached over the network without logging in.

Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.

Read the original description

Authentication Bypass / Missing Brute-Force Protection in remote.php/webdav/ in ownCloud ownCloud server 10.16.3 allows an unauthenticated remote attacker to perform unlimited online password guessing against WebDAV accounts via repeated HTTP Basic Authentication requests to the WebDAV endpoint.

cve.now Index

0Pcve.now Index 0 of 100 · methodology v3 · provisional
  • Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
  • Exposure?/25Unknown. No advisory context yet
  • Reach?/20Unknown. No tracked technology or package matched
  • Severity?/10Unknown. No CVSS score or vendor rating
  • No patch0/5No signal

What would change the score

  • Would score about 55 if added to CISA KEV
  • Would score about 50 if CISA's SSVC rates exploitation active
  • Would score about 22 if advisories confirm default setups are exposed

What to do

  • Upgrade to a fixed version: 11.1.0.

Timeline

  1. CVE published
  2. First seen by cve.now

Affected versions

  • Kiteworks ownCloud

    From 10.16.3 · fixed in 11.1.0

Evidence 1

  1. Repository

Corrections

None so far.

Something wrong on this page? Report an error. Every fix is listed here.

Questions about CVE-2026-84473

Is CVE-2026-84473 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data

Which versions are affected by CVE-2026-84473?

ownCloud: from 10.16.3 before 11.1.0.Source: cve.now feed data

How do I fix CVE-2026-84473?

Upgrade to a fixed version: 11.1.0.Source: cve.now feed data