Vulnerability · Published Oct 27, 2026 · Assigned by hackerone
CVE-2026-77172
Medium 5.3
In plain English
A medium-severity privilege mismanagement in Server from Nextcloud. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).
Severity (CVSS 3.0)5.3Medium
Exploit odds (30 days)0.3%top 77.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
App passwords were allowed to bypass password confirmation on sensitive endpoints.
Affected products (as reported)
Weakness: CWE-269 · Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N