{"items":[{"id":"NVI-00016308","kind":"vulnerability","title":"Fission: Incomplete capability denylist in Environment/Function PodSpec validation allows tenant-added CAP_SYS_TIME and cross-tenant node wall-clock corruption","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-qf5v-m7p4-95rp","CVE-2026-50570"],"plain_summary":"GitHub lists this reviewed advisory for github.com/fission/fission. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-1746a6af47414da323f8731ca1970828"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-07-28T20:12:47.000Z","value":"8.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-66d37fb2a8f0c365c01ec131f9248f6a"},{"kind":"CVSS","as_of":"2026-06-17T10:57:43.453Z","value":"8.5 HIGH (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-1746a6af47414da323f8731ca1970828"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-66d37fb2a8f0c365c01ec131f9248f6a","url":"https://github.com/advisories/GHSA-qf5v-m7p4-95rp","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-qf5v-m7p4-95rp","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T09:59:04.660Z"},{"id":"sr-1746a6af47414da323f8731ca1970828","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50570","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-50570","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-08T01:47:57.993Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-66d37fb2a8f0c365c01ec131f9248f6a"],"technology":"github.com/fission/fission","known_exclusions":[],"conditions_summary":"Fission v1.24.0 added PodSpec safety validation for tenant-facing Environment and Function CRDs (`ValidatePodSpecSafety` / `ValidateContainerSafety` admission webhook + `sanitizeContainerSecurityContext` executor merge layer), but the\ncapability check was implemented as a fixed **denylist of six Linux capabilities** (SYS_ADMIN, NET_ADMIN, SYS_PTRACE, SYS_MODULE, DAC_READ_SEARCH, DAC_OVERRIDE). The denylist omitted **CAP_SYS_TIME**, among others. As a result, a tenant\nwho could create a Function or Environment CRD could request `securityContext.capabilities.add: [\"SYS_TIME\"]`, pass Fission's admission validation and merge-layer sanitization, and run attacker-controlled code with `CAP_SYS_TIME` in the\nresulting function or runtime container.\n\nDemonstrated consequence: cross-tenant node integrity damage via `CAP_SYS_TIME`. The Linux real-time clock is not namespaced — time namespaces virtualize only `MONOTONIC` and `BOOTTIME`, never `REALTIME` — so a tenant container holding\n`CAP_SYS_TIME` could call `clock_settime(CLOCK_REALTIME)` and rewrite the shared node wall clock. That corrupts TLS / certificate validity windows, Kubernetes lease renewal, token expiry, scheduling, and time-seri","public_affected_ranges":["<= 1.24.0"]}],"null_published_at":"2026-11-08T19:53:44.028Z","source_updated_at":"2026-07-28T20:12:47.000Z","source_disclosed_at":"2026-07-28T20:12:45.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-03T09:59:04.660Z"},{"id":"NVI-00016308","kind":"vulnerability","title":"Fission: Incomplete capability denylist in Environment/Function PodSpec validation allows tenant-added CAP_SYS_TIME and cross-tenant node wall-clock corruption","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-qf5v-m7p4-95rp","CVE-2026-50570"],"plain_summary":"GitHub lists this reviewed advisory for github.com/fission/fission. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-66d37fb2a8f0c365c01ec131f9248f6a"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-07-28T20:12:47.000Z","value":"8.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-66d37fb2a8f0c365c01ec131f9248f6a"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-66d37fb2a8f0c365c01ec131f9248f6a","url":"https://github.com/advisories/GHSA-qf5v-m7p4-95rp","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-qf5v-m7p4-95rp","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T09:59:04.660Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-66d37fb2a8f0c365c01ec131f9248f6a"],"technology":"github.com/fission/fission","known_exclusions":[],"conditions_summary":"Fission v1.24.0 added PodSpec safety validation for tenant-facing Environment and Function CRDs (`ValidatePodSpecSafety` / `ValidateContainerSafety` admission webhook + `sanitizeContainerSecurityContext` executor merge layer), but the\ncapability check was implemented as a fixed **denylist of six Linux capabilities** (SYS_ADMIN, NET_ADMIN, SYS_PTRACE, SYS_MODULE, DAC_READ_SEARCH, DAC_OVERRIDE). The denylist omitted **CAP_SYS_TIME**, among others. As a result, a tenant\nwho could create a Function or Environment CRD could request `securityContext.capabilities.add: [\"SYS_TIME\"]`, pass Fission's admission validation and merge-layer sanitization, and run attacker-controlled code with `CAP_SYS_TIME` in the\nresulting function or runtime container.\n\nDemonstrated consequence: cross-tenant node integrity damage via `CAP_SYS_TIME`. The Linux real-time clock is not namespaced — time namespaces virtualize only `MONOTONIC` and `BOOTTIME`, never `REALTIME` — so a tenant container holding\n`CAP_SYS_TIME` could call `clock_settime(CLOCK_REALTIME)` and rewrite the shared node wall clock. That corrupts TLS / certificate validity windows, Kubernetes lease renewal, token expiry, scheduling, and time-seri","public_affected_ranges":["<= 1.24.0"]}],"null_published_at":"2026-11-04T10:04:27.930Z","source_updated_at":"2026-07-28T20:12:47.000Z","source_disclosed_at":"2026-07-28T20:12:45.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-03T09:59:04.660Z"}],"next_cursor":null,"snapshot_revision":"42594"}