{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-49822: Fission: Cross-namespace event leakage via KubernetesWatchTrigger allows persistent tenant surveillance","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-49822","status":"final","version":"1","initial_release_date":"2026-06-10T17:22:08.007Z","current_release_date":"2026-06-10T18:43:43.806Z","revision_history":[{"date":"2026-06-10T17:22:08.007Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.24.0, a low-privilege developer who could create a KubernetesWatchTrigger (KWT) in their own namespace was able to establish a persistent surveillance channel over any other namespace. This issue has been patched in version 1.24.0.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-49822 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-49822"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-49822"},{"category":"external","summary":"https://github.com/fission/fission/security/advisories/GHSA-gc3j-79f2-7vvw","url":"https://github.com/fission/fission/security/advisories/GHSA-gc3j-79f2-7vvw"},{"category":"external","summary":"https://github.com/fission/fission/pull/3379","url":"https://github.com/fission/fission/pull/3379"},{"category":"external","summary":"https://github.com/fission/fission/releases/tag/v1.24.0","url":"https://github.com/fission/fission/releases/tag/v1.24.0"}]},"product_tree":{"branches":[{"category":"vendor","name":"fission","branches":[{"category":"product_name","name":"fission","branches":[{"category":"product_version","name":"< 1.24.0","product":{"name":"fission fission < 1.24.0","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:fission:fission:\\<_1.24.0:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-49822","title":"Fission: Cross-namespace event leakage via KubernetesWatchTrigger allows persistent tenant surveillance","notes":[{"category":"description","text":"Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.24.0, a low-privilege developer who could create a KubernetesWatchTrigger (KWT) in their own namespace was able to establish a persistent surveillance channel over any other namespace. This issue has been patched in version 1.24.0.","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:C/C:H/I:N/A:N","baseScore":7.7,"baseSeverity":"HIGH"},"products":["CSAFPID-1"]}],"remediations":[{"category":"none_available","details":"No fixed version is published yet. Monitor the upstream advisory.","product_ids":["CSAFPID-1"]}]}]}