https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-03T04:02:38.545381+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/brew-glances-cve-2026-46611 BREW-glances-CVE-2026-46611 — Glances: XML-RPC Server Missing Host Header Validation Enables DNS Rebinding Attack 2026-10-03T04:02:38.594942+00:00

Affected: Homebrew: glances

Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.5, the 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. An attacker can exploit DNS rebinding to exfiltrate the full system monitoring dataset from a victim's browser. This vulnerability is fixed in 4.5.5.

 https://cve.radiocsirt.org/vuln/cve-2026-46611 CVE-2026-46611 — Glances: XML-RPC Server Missing Host Header Validation Enables DNS Rebinding Attack 2026-10-03T04:02:38.595019+00:00

Affected: nicolargo glances

Glances is an open-source system cross-platform monitoring tool. Prior to 4.5.5, the 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. An attacker can exploit DNS rebinding to exfiltrate the full system monitoring dataset from a victim's browser. This vulnerability is fixed in 4.5.5.

 https://cve.radiocsirt.org/vuln/ghsa-w856-8p3r-p338 GHSA-w856-8p3r-p338 — Glances: XML-RPC Server Missing Host Header Validation Enables DNS Rebinding Attack 2026-10-03T04:02:38.595080+00:00

Affected: PyPI: glances

### Summary

The 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.

---

### Details

**Affected component:** `glances/server.py` — `GlancesXMLRPCHandler` / `GlancesXMLRPCServer`

**Direct URL (commit 04579778e733d705898a169e049dc84772c852da):** - https://github.com/nicolargo/glances/blob/04579778e733d705898a169e049dc84772c852da/glances/server.py

Contrast — patched backends: - https://github.com/nicolargo/glances/blob/04579778e733d705898a169e049dc84772c852da/glances/outputs/glances_restful_api.py - https://github.com/nicolargo/glances/blob/04579778e733d705898a169e049dc84772c852da/glances/outputs/glances_mcp.py

The `GlancesXMLRPCHandler` class inherits from Python's `xmlrpc.server.SimpleXMLRPCRequestHandler` and does not override `parse_request()` to inspect or validate the `Host` header.

Contrast this with the two other Glances server backends, both of which received host-validation…