Vulnerability · Published Oct 27, 2026 · Assigned by hackerone
CVE-2026-67400
Low 3.5
In plain English
A low-severity improper access control in Richdocuments from Nextcloud. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).
Severity (CVSS 3.0)3.5Low
Exploit odds (30 days)0.2%top 92.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A missing token type check allowed to retrieve more additional information about the WOPI configuration with a user or guest token.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Nextcloud | Richdocuments | 11.0.0 – through 11.0.0 |
Weakness: CWE-284 · Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N