{"id":"CVE-2026-46611","aliases":["GHSA-w856-8p3r-p338","PYSEC-2026-2498"],"url":"https://o3.security/vulnerability/CVE-2026-46611","summary":"Glances: XML-RPC Server Missing Host Header Validation Enables DNS Rebinding Attack","details":"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.","published":"2026-06-25T18:00:47.735Z","modified":"2026-08-12T03:51:23.054285930Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N"},"epss":{"score":0.00166,"percentile":0.06148,"asOf":"2026-09-07"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"glances","fixedVersion":"4.5.5"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/nicolargo/glances/releases/tag/v4.5.5"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46611.json"},{"type":"ADVISORY","url":"https://github.com/nicolargo/glances/security/advisories/GHSA-w856-8p3r-p338"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46611"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:23.054285930Z"}}