{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-48119: Nezha Monitoring: Authenticated agents can forge service-monitor results for other users' services","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-48119","status":"final","version":"1","initial_release_date":"2026-06-12T21:03:17.672Z","current_release_date":"2026-06-12T21:03:17.672Z","revision_history":[{"date":"2026-06-12T21:03:17.672Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 0.20.0 to before version 2.0.12, authenticated agents can forge service-monitor results for other users' services. This issue has been patched in version 2.0.12.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-48119 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-48119"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-48119"},{"category":"external","summary":"https://github.com/nezhahq/nezha/security/advisories/GHSA-4g6j-g789-rghm","url":"https://github.com/nezhahq/nezha/security/advisories/GHSA-4g6j-g789-rghm"}]},"product_tree":{"branches":[{"category":"vendor","name":"nezhahq","branches":[{"category":"product_name","name":"nezha","branches":[{"category":"product_version","name":">= 0.20.0, < 2.0.12","product":{"name":"nezhahq nezha >= 0.20.0, < 2.0.12","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:nezhahq:nezha:\\>\\=_0.20.0\\,_\\<_2.0.12:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-48119","title":"Nezha Monitoring: Authenticated agents can forge service-monitor results for other users' services","notes":[{"category":"description","text":"Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 0.20.0 to before version 2.0.12, authenticated agents can forge service-monitor results for other users' services. This issue has been patched in version 2.0.12.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1"]},"scores":[{"cvss_v3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L","baseScore":7.1,"baseSeverity":"HIGH"},"products":["CSAFPID-1"]}],"remediations":[{"category":"none_available","details":"No fixed version is published yet. Monitor the upstream advisory.","product_ids":["CSAFPID-1"]}]}]}