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.
References (2)
Core 2
Core References
Vendor Advisory x_refsource_confirm
https://github.com/opencloud-eu/reva/security/advisories/GHSA-9j2f-3rj3-wgpg
Scores
CVSS v3
8.2
EPSS
0.0027
EPSS Percentile
18.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-863
Status
published
Products (2)
heinlein/opencloud_reva
< 2.40.3
opencloud-eu/reva
0 - 2.40.3Go
Published
Feb 06, 2026
Tracked Since
Feb 18, 2026