{"schema_version":"1.7.3","id":"GHSA-x6fh-7qmf-69xh","published":"2025-10-23T06:31:00Z","modified":"2026-02-04T03:03:52.620380Z","aliases":["CVE-2025-62820","GO-2025-4068"],"related":["CGA-2j5x-vcjc-9f8r"],"summary":"Slack Nebula may accept arbitrary source IP addresses ","details":"Slack Nebula before 1.9.7 mishandles CIDR in some configurations and thus accepts arbitrary source IP addresses within the Nebula network.","affected":[{"package":{"name":"github.com/slackhq/nebula","ecosystem":"Go","purl":"pkg:golang/github.com/slackhq/nebula"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.9.4"},{"fixed":"1.9.7"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/10/GHSA-x6fh-7qmf-69xh/GHSA-x6fh-7qmf-69xh.json"}}],"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-62820"},{"type":"WEB","url":"https://github.com/slackhq/nebula/pull/1493"},{"type":"WEB","url":"https://github.com/slackhq/nebula/pull/1494"},{"type":"WEB","url":"https://github.com/slackhq/nebula/commit/e264a0ff888c7bf0568579306755a60fc42f6ecc"},{"type":"PACKAGE","url":"https://github.com/slackhq/nebula"}],"database_specific":{"cwe_ids":["CWE-420"],"github_reviewed":true,"github_reviewed_at":"2025-10-23T16:49:07Z","nvd_published_at":"2025-10-23T04:18:57Z","severity":"MODERATE"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L"}]}