CVE Explorer

CVE-2026-23989

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.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:7e39ca3cee4e02ee74d7704fe3bfbc83c18a203f66cda48ba6fafa511c177dbe

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"reva","vendor":"opencloud-eu","versions":[{"status":"affected","version":"< 2.40.3"},{"status":"affected","version":">= 2.41.0, < 2.42.3"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:592f0b0a1afccf84cbb52e7d01417dcbd706abbcf3cf27888bd60fe038f1768e · sha256:8e8895d9d48fdf54… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:592f0b0a1afccf84cbb52e7d01417dcbd706abbcf3cf27888bd60fe038f1768e · sha256:8e8895d9d48fdf54… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-863","description":"CWE-863: Incorrect Authorization","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:592f0b0a1afccf84cbb52e7d01417dcbd706abbcf3cf27888bd60fe038f1768e · sha256:8e8895d9d48fdf54… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/opencloud-eu/reva/commit/95aa2bc5d980eaf6cc134d75782b4f5ac7b36ae1","tags":["x_refsource_MISC"],"url":"https://github.com/opencloud-eu/reva/commit/95aa2bc5d980eaf6cc134d75782b4f5ac7b36ae1"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:592f0b0a1afccf84cbb52e7d01417dcbd706abbcf3cf27888bd60fe038f1768e · sha256:8e8895d9d48fdf54… · /containers/cna/references/1

{"name":"https://github.com/opencloud-eu/reva/security/advisories/GHSA-9j2f-3rj3-wgpg","tags":["x_refsource_CONFIRM"],"url":"https://github.com/opencloud-eu/reva/security/advisories/GHSA-9j2f-3rj3-wgpg"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:592f0b0a1afccf84cbb52e7d01417dcbd706abbcf3cf27888bd60fe038f1768e · sha256:8e8895d9d48fdf54… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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