{"schema_version":"1.9.0","id":"CVE-2026-23989","published":"2026-02-06T18:28:25.075Z","modified":"2026-08-12T03:51:32.964043148Z","aliases":["GHSA-9j2f-3rj3-wgpg","GO-2026-4444"],"related":["SUSE-SU-2026:0757-1","openSUSE-SU-2026:10159-1","openSUSE-SU-2026:21483-1"],"summary":"REVA Public Link Exploit","details":"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.","affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/opencloud-eu/reva","events":[{"introduced":"0"},{"fixed":"a53c75eb19179a3ae93a336454f0396674f9d596"},{"introduced":"178769c3afcd594c464fdc19603d21485e91c9a8"},{"fixed":"c6bdd1ae58ea1e5b0deab79d023ea7ec51aab2a0"},{"fixed":"95aa2bc5d980eaf6cc134d75782b4f5ac7b36ae1"}],"database_specific":{"cpe":"cpe:2.3:a:heinlein:opencloud_reva:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"2.40.3"},{"introduced":"2.41.0"},{"fixed":"2.42.3"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["v2.40.1","v2.40.2","v2.42.2","v2.42.1","v2.42.0","v2.41.0","v2.40.0","v2.39.3","v2.39.2","v2.39.1","v2.39.0","v2.38.0","v2.37.0","v2.36.0","v2.35.0","v2.34.0","v2.33.1","v2.33.0","v2.32.0","v2.31.0","v2.29.1","v2.30.0","v2.29.0","v2.28.0","public_avail","v2.27.2","v2.27.1","v2.26.8","v2.26.6","v2.26.7","v2.24.1","v2.23.0","v2.19.1","v2.8.0","v2.5.1","v2.5.0","v1.16.0","v1.15.0","v1.14.0","v1.13.0","v1.12.0","v1.11.0","v1.10.0","v1.9.1","v1.9.0","v1.8.1","v1.8.0","v1.7.0","v1.6.0","v1.5.1","v1.5.0","v1.4.0","v1.3.0","v1.2.1","v1.2.0","v1.1.0","v1.0.0","v0.1.0","v0.0.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23989.json"}}],"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23989.json"},{"type":"ADVISORY","url":"https://github.com/opencloud-eu/reva/security/advisories/GHSA-9j2f-3rj3-wgpg"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23989"},{"type":"FIX","url":"https://github.com/opencloud-eu/reva/commit/95aa2bc5d980eaf6cc134d75782b4f5ac7b36ae1"}],"database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-863"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23989.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N"}]}