CVEvulnerability

CVE-2026-45691

5.9 MEDIUM Published 2026-06-01 Modified 2026-07-22 Official page ↗
Status
Analyzed
Published
2026-06-01
Last modified
2026-07-22
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.9 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N
Weaknesses
CWE-287

Description

Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before 32.0.9, and 33.0.0 to before 33.0.3, a pre-2FA session cookie (created after successful password authentication but before TOTP completion) could be reused as a Bearer token to authenticate against DAV endpoints, granting read/write access and bypassing mandatory two-factor authentication. It is recommended that the Nextcloud Server is upgraded to 33.0.3 or 32.0.9. It is recommended that the Nextcloud Enterprise Server is upgraded to 33.0.3, 32.0.9, 31.0.14.5, 30.0.17.9 or 29.0.16.16

Affected configurations

• nextcloud nextcloud server (>= 32.0.0 < 32.0.9) • nextcloud nextcloud server (>= 33.0.0 < 33.0.3) • nextcloud nextcloud server (>= 29.0.0 < 29.0.16.16) • nextcloud nextcloud server (>= 30.0.0 < 30.0.17.9) • nextcloud nextcloud server (>= 31.0.0 < 31.0.14.5)

Related

Weakness · CWE (1)

  • CWE-287 Improper Authentication weakness

References