DEBIAN-CVE-2026-34839
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-34839
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34839.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-34839
- Upstream
- Published
- 2026-04-21T00:16:27Z
- Modified
- 2026-09-14T17:03:30Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
Glances is an open-source system cross-platform monitoring tool. Prior to version 4.5.4, the Glances web server exposes a REST API (
/api/4/*) that is accessible without authentication and allows cross-origin requests from any origin due to a permissive CORS policy (Access-Control-Allow-Origin: *). This allows a malicious website to read sensitive system information from a running Glances instance in the victim’s browser, leading to cross-origin data exfiltration. While a previous advisory exists for XML-RPC CORS issues, this report demonstrates that the REST API (/api/4/*) is also affected and exposes significantly more sensitive data. Version 4.5.4 patches the issue. - References
Affected packages
Debian:12 / glances
Package
- Name
- glances
- Purl
- pkg:deb/debian/glances?arch=source&distro=bookworm
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Debian:13 / glances
Package
- Name
- glances
- Purl
- pkg:deb/debian/glances?arch=source&distro=trixie
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Debian:14 / glances
Package
- Name
- glances
- Purl
- pkg:deb/debian/glances?arch=source&distro=forky