Information disclosure in Dgtlmoon Changedetection.io
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…
Vulnerability class: Information Disclosure
EPSS: 0.005 (38.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Dgtlmoon Changedetection.io — versions < 0.54.7
- Webtechnologies Changedetection
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-33981?
- CVE-2026-33981 is a medium-severity vulnerability in Dgtlmoon Changedetection.io, classified under Information Disclosure. CVSS score: 6.5/10. Published 2026-03-27.
- How severe is CVE-2026-33981?
- Medium severity. CVSS v3 base score is 6.5 out of 10.