{"id":"CVE-2026-111999","title":"Vanus 0.8.0 through 0.9.0 Missing Authentication via Gateway CloudEvents HTTP Receiver","summary":"Vanus 0.8.0 through 0.9.0 contains a missing authentication vulnerability that allows unauthenticated remote attackers to publish events to any eventbus through the gateway CloudEvents HTTP receiver. Attackers can send forged CloudEvents…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","cvssSource":"cna","cwe":["CWE-306"],"vendor":"vanus-labs","product":"vanus","affected":["vanus >= 0.8.0 <= 0.9.0"],"published":"2026-10-18","updated":"2026-10-18","sourceUpdated":"2026-10-18T11:38:25.071Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111999","references":[{"url":"https://github.com/vanus-labs/vanus/issues/647"},{"url":"https://github.com/vanus-labs/vanus/blob/v0.9.0/internal/gateway/gateway.go#L81-L124"},{"url":"https://www.vulncheck.com/advisories/vanus-0.8.0-through-0.9.0-missing-authentication-via-gateway-cloudevents-http-receiver","label":"VulnCheck Advisory: Vanus 0.8.0 through 0.9.0 Missing Authentication via Gateway CloudEvents HTTP Receiver"}],"tags":["cve.org"],"ingestedAt":"2026-10-18T11:40:26.625Z","slug":"CVE-2026-111999","body":"## Overview\n\nVanus 0.8.0 through 0.9.0 contains a missing authentication vulnerability that allows unauthenticated remote attackers to publish events to any eventbus through the gateway CloudEvents HTTP receiver. Attackers can send forged CloudEvents to the /namespaces/{ns}/eventbus/{name}/events or legacy /gateway/{name} paths, bypassing token authentication and authPublish checks, so they are stored and delivered to subscription sinks.\n\n## Affected\n\n- `vanus >= 0.8.0 <= 0.9.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}