CVE-2026-33981

MEDIUM

Changedetection.io Discloses Environment Variables via jq env Builtin in Include Filters

Title source: cna
STIX 2.1

Description

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.

Scores

CVSS v3 6.5
EPSS 0.0002
EPSS Percentile 3.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-200
Status published
Products (3)
dgtlmoon/changedetection.io < 0.54.7
pypi/changedetection.io 0 - 0.54.7PyPI
webtechnologies/changedetection < 0.54.7
Published Mar 27, 2026
Tracked Since Mar 29, 2026