CVE-2026-32633

CRITICAL

Glances's Browser API Exposes Reusable Downstream Credentials via `/api/4/serverslist`

Title source: cna
STIX 2.1

Description

Glances is an open-source system cross-platform monitoring tool. Prior to version 4.5.2, in Central Browser mode, the `/api/4/serverslist` endpoint returns raw server objects from `GlancesServersList.get_servers_list()`. Those objects are mutated in-place during background polling and can contain a `uri` field with embedded HTTP Basic credentials for downstream Glances servers, using the reusable pbkdf2-derived Glances authentication secret. If the front Glances Browser/API instance is started without `--password`, which is supported and common for internal network deployments, `/api/4/serverslist` is completely unauthenticated. Any network user who can reach the Browser API can retrieve reusable credentials for protected downstream Glances servers once they have been polled by the browser instance. Version 4.5.2 fixes the issue.

Scores

CVSS v3 9.1
EPSS 0.0010
EPSS Percentile 26.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact total

Details

CWE
CWE-200 CWE-522
Status published
Products (2)
nicolargo/glances < 4.5.2 (2 CPE variants)
pypi/Glances 0 - 4.5.2PyPI
Published Mar 18, 2026
Tracked Since Mar 19, 2026