Most recent entries from all

EUVD-2026-278179

fkie_cve-2026-33981

changedetection.io is a free open source web page change detection tool. Prior to 0.54.7, the `jq:` and `jqraw:` include filter expressions allow use of the jq `env` builtin, which reads all process environment variables and stores them as the watch snapshot. An authenticated user (or unauthenticated user when no password is set, the default) can leak sensitive environment variables including `SALTED_PASS`, `PLAYWRIGHT_DRIVER_URL`, `HTTP_PROXY`, and any secrets passed as env vars to the container. Version 0.54.7 patches the issue.

GHSA-58r7-4wr5-hfx8 — Changedetection.io Discloses Environment Variables via jq env Builtin in Include Filters

Affected: PyPI: changedetection.io

### Summary

The `jq:` and `jqraw:` include filter expressions allow use of the jq `env` builtin, which reads all process environment variables and stores them as the watch snapshot. An authenticated user (or unauthenticated user when no password is set, the default) can leak sensitive environment variables including `SALTED_PASS`, `PLAYWRIGHT_DRIVER_URL`, `HTTP_PROXY`, and any secrets passed as env vars to the container.

### Details

**Vulnerable file:** `changedetectionio/html_tools.py`, lines 380-388

User-supplied jq filter expressions are compiled and executed without restricting dangerous jq builtins:

```python if json_filter.startswith("jq:"): jq_expression = jq.compile(json_filter.removeprefix("jq:")) match = jq_expression.input(json_data).all() return _get_stripped_text_from_json_match(match)

if json_filter.startswith("jqraw:"): jq_expression = jq.compile(json_filter.removeprefix("jqraw:")) match = jq_expression.input(json_data).all() return '\n'.join(str(item) for item in match) ```

The form validator at `forms.py:670-673` only checks that the expression compiles (`jq.compile(input)`) — it does not block dangerous functions. The jq `env` builtin reads all process environment variables regardless of the input data, returning a dictionary of every env var in the server process.

### PoC

**Step 1 — Create a watch for any JSON endpoint with `jqraw:env` as the include filter:**

```bash curl -X POST http://target:5000/api/v1/watch \ -H "Co…

PYSEC-2026-2130

Affected: PyPI: changedetection-io