{"items":[{"id":"NVI-00016228","kind":"vulnerability","title":"Glances: XML-RPC Server Missing Host Header Validation Enables DNS Rebinding Attack","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-w856-8p3r-p338","CVE-2026-46611"],"plain_summary":"GitHub lists this reviewed advisory for glances. 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-4e7dc74af3e605a7fa2ca970a2a43ca8"],"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":"2026-07-21T14:44:27.000Z","value":"5.3 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-4e7dc74af3e605a7fa2ca970a2a43ca8"}],"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-4e7dc74af3e605a7fa2ca970a2a43ca8","url":"https://github.com/advisories/GHSA-w856-8p3r-p338","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-w856-8p3r-p338","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T22:34:49.300Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-4e7dc74af3e605a7fa2ca970a2a43ca8"],"technology":"glances","known_exclusions":[],"conditions_summary":"### Summary\n\nThe Glances XML-RPC server (`glances -s`, implemented in `glances/server.py`) does not validate the HTTP `Host` header, leaving it vulnerable to DNS rebinding attacks.  CVE-2026-32632 (patched in 4.5.2) added `TrustedHostMiddleware` to the REST/WebUI server; the MCP server has had equivalent protection since 4.5.1. The XML-RPC server received neither fix and has no `allowed-hosts` configuration key.  Combined with the unrestricted `Access-Control-Allow-Origin: *` header (see companion advisory for CVE-2026-33533 and its incomplete fix), an attacker can exploit DNS rebinding to exfiltrate the full system monitoring dataset from a victim's browser.\n\n---\n\n### Details\n\n**Affected component:** `glances/server.py` — `GlancesXMLRPCHandler` / `GlancesXMLRPCServer`\n\n**Direct URL (commit 04579778e733d705898a169e049dc84772c852da):**\n- https://github.com/nicolargo/glances/blob/04579778e733d705898a169e049dc84772c852da/glances/server.py\n\nContrast — patched backends:\n- https://github.com/nicolargo/glances/blob/04579778e733d705898a169e049dc84772c852da/glances/outputs/glances_restful_api.py\n- https://github.com/nicolargo/glances/blob/04579778e733d705898a169e049dc84772c852da/glances/out","public_affected_ranges":["< 4.5.5"]}],"null_published_at":"2026-11-04T10:04:27.920Z","source_updated_at":"2026-07-21T14:44:27.000Z","source_disclosed_at":"2026-06-22T21:31:44.000Z","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":"2026-11-03T22:34:49.300Z"}],"next_cursor":null,"snapshot_revision":"42594"}