CVE-2026-23989

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.

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/opencloud-eu/reva/commit/95aa2bc5d980eaf6cc134d75782b4f5ac7b36ae1	Patch
https://github.com/opencloud-eu/reva/security/advisories/GHSA-9j2f-3rj3-wgpg	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:heinlein:opencloud_reva::::::::
	cpe:2.3:a:heinlein:opencloud_reva::::::::

History

24 Feb 2026, 20:57

Type	Values Removed	Values Added
CPE		cpe:2.3:a:heinlein:opencloud_reva::::::::
First Time		Heinlein Heinlein opencloud Reva
References	~~() https://github.com/opencloud-eu/reva/commit/95aa2bc5d980eaf6cc134d75782b4f5ac7b36ae1 -~~	() https://github.com/opencloud-eu/reva/commit/95aa2bc5d980eaf6cc134d75782b4f5ac7b36ae1 - Patch
References	~~() https://github.com/opencloud-eu/reva/security/advisories/GHSA-9j2f-3rj3-wgpg -~~	() https://github.com/opencloud-eu/reva/security/advisories/GHSA-9j2f-3rj3-wgpg - Vendor Advisory

06 Feb 2026, 19:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-06 19:16

Updated : 2026-02-24 20:57

NVD link : CVE-2026-23989

Mitre link : CVE-2026-23989

CVE.ORG link : CVE-2026-23989

JSON object : View

Products Affected

heinlein

opencloud_reva

CWE

CWE-863

Incorrect Authorization

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