CVE-2026-23989

HIGH

8.2

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.

CVE Details

CVSS v3.1 Score8.2

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/6/2026

Last Modified2/24/2026

Sourcenvd

Honeypot Sightings0

Affected Products

heinlein:opencloud_reva

Weaknesses (CWE)

CWE-863

References

https://github.com/opencloud-eu/reva/commit/95aa2bc5d980eaf6cc134d75782b4f5ac7b36ae1(security-advisories@github.com)

https://github.com/opencloud-eu/reva/security/advisories/GHSA-9j2f-3rj3-wgpg(security-advisories@github.com)

IOC Correlations

No correlations recorded

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