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CVE-2026-32633 — Glances's Browser API Exposes Reusable Downstream Credentials via `/api/4/serverslist`

Affected: nicolargo glances

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.

GHSA-r297-p3v4-wp8m — Glances's Browser API Exposes Reusable Downstream Credentials via `/api/4/serverslist`

Affected: PyPI: Glances

## Summary

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.

## Details

The Browser API route simply returns the raw servers list:

```python # glances/outputs/glances_restful_api.py:799-805 def _api_servers_list(self): self.__update_servers_list() return GlancesJSONResponse(self.servers_list.get_servers_list() if self.servers_list else []) ```

The main API router is only protected when the front instance itself was started with `--password`. Otherwise there are no authentication dependencies at all:

```python # glances/outputs/glances_restful_api.py:475-480 if self.args.password: router = APIRouter(prefix=self.url_prefix, dependencies=[Depends(self.authentication)]) else: router = APIRouter(prefix=self.url_prefix) ```

The Glances web server binds to `0.0.0.0` by default:

```python # glances/…

PYSEC-2026-343 — Glances's Browser API Exposes Reusable Downstream Credentials via `/api/4/serverslist`

Affected: PyPI: glances

## Summary

The Browser API route simply returns the raw servers list:

The main API router is only protected when the front instance itself was started with `--password`. Otherwise there are no authentication dependencies at all:

The Glances web server binds to `0.0.0.0` by default:

```python # glanc…