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fkie_cve-2026-62364

wlc is a Weblate command-line client using Weblate's REST API. Prior to 2.0.1, automatically discovered configuration from .weblate, .weblate.ini, or weblate.ini can select the API URL while an unscoped API token is supplied through WLC_KEY or --key without a matching WLC_URL or --url. When wlc runs in an untrusted repository, pull request checkout, or directory with untrusted ancestor configuration, it can send the token to an attacker-controlled project-configured URL. URL-scoped keys in [keys] are not affected. This issue is fixed in version 2.0.1.

GHSA-3mqq-hv9c-85hc — wlc may disclose API tokens to project-configured URLs

Affected: PyPI: wlc

### Impact

wlc could send an unscoped API token to an unintended server when run inside a directory tree containing attacker-controlled project configuration.

If `.weblate`, `.weblate.ini`, or `weblate.ini` defines an API url, and the user supplies a token with `WLC_KEY` or `--key` without also pinning the URL, wlc would send the token to the project-configured URL.

Impacted users are those running wlc in untrusted repositories, pull request checkouts, or directories with untrusted ancestor configuration while using `WLC_KEY` or `--key`.

### Patches

The issue is patched in wlc 2.0.1 via https://github.com/WeblateOrg/wlc/pull/1500.

The fix rejects unscoped keys when the API URL comes from automatically discovered project configuration:

- `WLC_KEY` now requires `WLC_URL`. - `--key` now requires `--url`. - URL-scoped keys in the `[keys]` configuration section remain supported.

Users should upgrade to wlc 2.0.1 or newer.

### Workarounds

Without upgrading, users can avoid the issue by explicitly pinning the API URL whenever using an unscoped key:

`WLC_URL=https://hosted.weblate.org/api/ WLC_KEY=... wlc ...`

or:

`wlc --url https://hosted.weblate.org/api/ --key ... ...`

Alternatively, use URL-scoped keys in the [keys] section instead of WLC_KEY or --key, and avoid running wlc with secrets in untrusted checkouts.

- The issue was independently reported by [type5afe](https://hackerone.com/type5afe) and [visionx7](https://hackerone.com/visionx7) using HackerOne.

PYSEC-2026-4180 — wlc may disclose API tokens to project-configured URLs