{"id":"CVE-2026-32610","aliases":["GHSA-9jfm-9rc6-2hfq","PYSEC-2026-2169"],"url":"https://o3.security/vulnerability/CVE-2026-32610","summary":"Glances's Default CORS Configuration Allows Cross-Origin Credential Theft","details":"Glances is an open-source system cross-platform monitoring tool. Prior to version 4.5.2, the Glances REST API web server ships with a default CORS configuration that sets `allow_origins=[\"*\"]` combined with `allow_credentials=True`. When both of these options are enabled together, Starlette's `CORSMiddleware` reflects the requesting `Origin` header value in the `Access-Control-Allow-Origin` response header instead of returning the literal `*` wildcard. This effectively grants any website the ability to make credentialed cross-origin API requests to the Glances server, enabling cross-site data theft of system monitoring information, configuration secrets, and command line arguments from any user who has an active browser session with a Glances instance. Version 4.5.2 fixes the issue.","published":"2026-03-18T16:31:12.154Z","modified":"2026-08-12T03:51:22.043634171Z","cvss":{"score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N"},"epss":{"score":0.00339,"percentile":0.26335,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"glances","fixedVersion":"4.5.2"}],"fix":{"url":"https://github.com/nicolargo/glances/commit/4465169b71d93991f1e49740fe02428291099832","label":"nicolargo/glances@4465169"},"references":[{"type":"WEB","url":"https://github.com/nicolargo/glances/releases/tag/v4.5.2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32610.json"},{"type":"ADVISORY","url":"https://github.com/nicolargo/glances/security/advisories/GHSA-9jfm-9rc6-2hfq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32610"},{"type":"FIX","url":"https://github.com/nicolargo/glances/commit/4465169b71d93991f1e49740fe02428291099832"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:22.043634171Z"}}