Vulnerability · Published Mar 18, 2026 · Assigned by GitHub_M
CVE-2026-32634Glances Central Browser Autodiscovery Leaks Reusable Credentials to Zeroconf-Spoofed Servers
High 8.1
In plain English
A high-severity security flaw in glances from nicolargo. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Glances is an open-source system cross-platform monitoring tool. Prior to version 4.5.2, in Central Browser mode, Glances stores both the Zeroconf-advertised server name and the discovered IP address for dynamic servers, but later builds connection URIs from the untrusted advertised name instead of the discovered IP. When a dynamic server reports itself as protected, Glances also uses that same untrusted name as the lookup key for saved passwords and the global `[passwords] default` credential. An attacker on the same local network can advertise a fake Glances service over Zeroconf and cause the browser to automatically send a reusable Glances authentication secret to an attacker-controlled host. This affects the background polling path and the REST/WebUI click-through path in Central Browser mode. Version 4.5.2 fixes the issue.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | glances | no fix listed | DEBIAN-CVE-2026-32634 |
| Debian:13 | glances | no fix listed | DEBIAN-CVE-2026-32634 |
| Debian:14 | glances | 4.5.2+dfsg-1 | DEBIAN-CVE-2026-32634 |
| PyPI | glances | 4.5.2 | GHSA-vx5f-957p-qpvm |
| PyPI | glances | 4.5.2 | PYSEC-2026-2172 |
| Ubuntu:22.04:LTS | glances | no fix listed | UBUNTU-CVE-2026-32634 |
| Ubuntu:24.04:LTS | glances | no fix listed | UBUNTU-CVE-2026-32634 |
| Ubuntu:25.10 | glances | no fix listed | UBUNTU-CVE-2026-32634 |
| Ubuntu:26.04:LTS | glances | no fix listed | UBUNTU-CVE-2026-32634 |
| Ubuntu:26.10 | glances | no fix listed | UBUNTU-CVE-2026-32634 |
Affected products (as reported)
Weakness: CWE-346, CWE-522 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
References
- https://github.com/nicolargo/glances/security/advisories/GHSA-vx5f-957p-qpvm x_refsource_CONFIRM
- https://github.com/nicolargo/glances/commit/61d38eec521703e41e4933d18d5a5ef6f854abd5 x_refsource_MISC
- https://github.com/nicolargo/glances/releases/tag/v4.5.2 x_refsource_MISC