CVE-2026-45159

LOW EPSS 10.3%
Published Jun 1, 20264w ago · Modified Jun 17, 20261w ago
3.5 CVSS 3.1
Low
Find Similar
Published Jun 1, 2026 4w ago
Last Modified Jun 17, 2026 1w ago

Description

Nextcloud is an open source content collaboration platform. From versions 1.15.0 to before 1.15.4, 1.16.0 to before 1.16.3, 1.17.0 to before 1.17.1, and 1.18.0 to before 1.18.1, a malicious user with access to an end-to-end encrypted files drop link was able to also drop files into other end-to-end encrypted folders of the share owner. Reading and modifying of other files was not possible. This issue has been patched in versions 1.15.4, 1.16.3, 1.17.1, 1.18.1, and 2.0.0-rc.7.

CVSS Details

Base Score
3.5
Exploitability
2.1
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
10.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-639

References 3

  • github.com https://github.com/nextcloud/end_to_end_encryption/pull/1395
  • github.com https://github.com/nextcloud/security-advisories/security/advisories/GHSA-p3qw-7gwx-wg24
  • hackerone.com https://hackerone.com/reports/3304830

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.