REVA is an interoperability platform. Prior to 2.42.3 and 2.40.3, a bug in the GRPC authorization middleware of the "Reva" component of OpenCloud allows a malicious user to bypass the scope verification of a public link. By exploiting this via the the "archiver" service this can be leveraged to create an archive (zip or tar-file) containing all resources that this creator of the public link has access to. This vulnerability is fixed in 2.42.3 and 2.40.3.
History

Fri, 06 Feb 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 06 Feb 2026 19:00:00 +0000

Type Values Removed Values Added
Description REVA is an interoperability platform. Prior to 2.42.3 and 2.40.3, a bug in the GRPC authorization middleware of the "Reva" component of OpenCloud allows a malicious user to bypass the scope verification of a public link. By exploiting this via the the "archiver" service this can be leveraged to create an archive (zip or tar-file) containing all resources that this creator of the public link has access to. This vulnerability is fixed in 2.42.3 and 2.40.3.
Title REVA Public Link Exploit
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-02-06T18:28:25.075Z

Updated: 2026-02-06T18:52:19.409Z

Reserved: 2026-01-19T18:49:20.657Z

Link: CVE-2026-23989

cve-icon Vulnrichment

Updated: 2026-02-06T18:52:10.574Z

cve-icon NVD

Status : Received

Published: 2026-02-06T19:16:08.470

Modified: 2026-02-06T19:16:08.470

Link: CVE-2026-23989

cve-icon Redhat

No data.