CVE-2025-47790

Description

Nextcloud Server is a self hosted personal cloud system. Nextcloud Server prior to 29.0.15, 30.0.9, and 31.0.3 and Nextcloud Enterprise Server prior to 26.0.13.15, 27.1.11.15, 28.0.14.6, 29.0.15, 30.0.9, and 31.0.3 have a bug with session handling. The bug caused skipping the second factor confirmation after a successful login with the username and password when the server was configured with `remember_login_cookie_lifetime` set to `0`, once the session expired on the page to select the second factor and the page is reloaded. Nextcloud Server 29.0.15, 30.0.9, and 31.0.3 and Nextcloud Enterprise Server is upgraded to 26.0.13.15, 27.1.11.15, 28.0.14.6, 29.0.15, 30.0.9 and 31.0.3 contain a patch. As a workaround, set the `remember_login_cookie_lifetime` in config.php to a value other than `0`, e.g. `900`. Beware that this is only a workaround for new sessions created after the configuration change. System administration can delete affected sessions.

Reserved 2025-05-09 | Published 2025-05-16 | Updated 2025-05-16 | Assigner GitHub_M

Problem types

CWE-287: Improper Authentication

Product status

>= 26.0.0, < 26.0.13.15
affected

>= 27.0.0, < 27.1.11.15
affected

>= 28.0.0, < 28.0.14.6
affected

>= 29.0.0, < 29.0.15
affected

>= 30.0.0, < 30.0.9
affected

>= 31.0.0, < 31.0.3
affected

References

github.com/...sories/security/advisories/GHSA-9h3w-f3h4-qqrh

github.com/nextcloud/server/pull/51905

hackerone.com/reports/2729367

cve.org (CVE-2025-47790)

nvd.nist.gov (CVE-2025-47790)

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