CVE-2026-23989: CWE-863: Incorrect Authorization in opencloud-eu reva
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.
CVE-2026-23989: CWE-863: Incorrect Authorization in opencloud-eu reva
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.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-01-19T18:49:20.657Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69863a39f9fa50a62f278f63
Added to database: 2/6/2026, 7:00:09 PM
Last updated: 2/6/2026, 7:00:11 PM
Views: 1
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