CVE-2026-45277 PUBLISHED

Nextcloud: Information disclosure in Nextcloud Approval app via fileId parameter reveals workflow associations

Assigner: GitHub_M
Reserved: 11.05.2026 Published: 01.06.2026 Updated: 01.06.2026

Nextcloud is an open source content collaboration platform. Prior to version 2.7.2, authenticated users can check if arbitrary files are associated with specific approval workflows where they can request approval. This issue has been patched in version 2.7.2.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS Score: 3.3

Attack Vector	Local	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	Low	Integrity Impact	None
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	nextcloud
Product	security-advisories
Versions	Version < 2.7.2 is affected

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h7gm-vgxr-9hcw
https://github.com/nextcloud/approval/pull/356
https://hackerone.com/reports/3475210

Problem Types

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE