CVE-2026-23989 – REVA Public Link Exploit

CVE ID : CVE-2026-23989

Published : Feb. 6, 2026, 6:28 p.m. | 50 minutes ago

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.

Severity: 0.0 | NA

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