{"cve":"CVE-2026-32632","nvd":{"published":"2026-03-18T18:16:28.760","modified":"2026-06-17T10:36:08.183","status":"Analyzed","description":"Glances is an open-source system cross-platform monitoring tool. Glances recently added DNS rebinding protection for the MCP endpoint, but prior to version 4.5.2, the main REST/WebUI FastAPI application still accepts arbitrary `Host` headers and does not apply `TrustedHostMiddleware` or an equivalent host allowlist. As a result, the REST API, WebUI, and token endpoint remain reachable through attacker-controlled domains in classic DNS rebinding scenarios. Once the victim browser has rebound the attacker domain to the Glances service, same-origin policy no longer protects the API because the browser considers the rebinding domain to be the origin. This is a distinct issue from the previously reported default CORS weakness. CORS is not required for exploitation here because DNS rebinding causes the victim browser to treat the malicious domain as same-origin with the rebinding target. Version 4.5.2 contains a patch for the issue.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N","score":5.9},"cwes":["CWE-346"],"references":["https://github.com/nicolargo/glances/commit/5850c564ee10804fdf884823b9c210eb954dd1f9","https://github.com/nicolargo/glances/releases/tag/v4.5.2","https://github.com/nicolargo/glances/security/advisories/GHSA-hhcg-r27j-fhv9","https://github.com/nicolargo/glances/security/advisories/GHSA-hhcg-r27j-fhv9"],"products":["nicolargo:glances"],"source":"nvd","synced_at":"2026-10-19T22:26:19.218427112+00:00"},"epss":{"cve":"CVE-2026-32632","score":0.00192,"percentile":0.08861,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-hhcg-r27j-fhv9","url":"https://osv.dev/vulnerability/GHSA-hhcg-r27j-fhv9","summary":"Glances's REST/WebUI Lacks Host Validation and Remains Exposed to DNS Rebinding","modified":"2026-07-13T07:26:42.820956065Z","packages":[{"ecosystem":"PyPI","name":"glances","purl":"pkg:pypi/glances","ranges":["<4.5.2"],"fixed":["4.5.2"]}]},{"id":"PYSEC-2026-2171","url":"https://osv.dev/vulnerability/PYSEC-2026-2171","summary":"","modified":"2026-07-13T07:15:31.598073816Z","packages":[{"ecosystem":"PyPI","name":"glances","purl":"pkg:pypi/glances","ranges":["<4.5.2"],"fixed":["4.5.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}