{"id":"CVE-2025-62820","details":"Slack Nebula before 1.9.7 mishandles CIDR in some configurations and thus accepts arbitrary source IP addresses within the Nebula network.","aliases":["GHSA-x6fh-7qmf-69xh","GO-2025-4068"],"modified":"2026-03-20T12:45:43.107219Z","published":"2025-10-23T04:18:57.453Z","related":["CGA-2j5x-vcjc-9f8r","openSUSE-SU-2025:15710-1"],"references":[{"type":"FIX","url":"https://github.com/slackhq/nebula/pull/1493"},{"type":"FIX","url":"https://github.com/slackhq/nebula/pull/1494"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/slackhq/nebula","events":[{"introduced":"0"},{"fixed":"7c3f5339508c7dbc74eea7f925d31b28bafa1b45"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"1.9.7"}]}}],"versions":["v1.0.0","v1.1.0","v1.2.0","v1.3.0","v1.4.0","v1.5.0","v1.5.2","v1.6.0","v1.6.1","v1.7.0","v1.7.1","v1.7.2","v1.8.0","v1.8.1","v1.8.2","v1.9.0","v1.9.1","v1.9.2","v1.9.3","v1.9.4","v1.9.5","v1.9.6"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-62820.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L"}]}