Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Webtechnologies | Changedetection | < 0.54.7 |
Related Weaknesses (CWE)
References
- https://github.com/dgtlmoon/changedetection.io/commit/65517a9c74a0cbe1a466131447Patch
- https://github.com/dgtlmoon/changedetection.io/releases/tag/0.54.7ProductRelease Notes
- https://github.com/dgtlmoon/changedetection.io/security/advisories/GHSA-58r7-4wrExploitVendor Advisory
- https://github.com/dgtlmoon/changedetection.io/security/advisories/GHSA-58r7-4wrExploitVendor Advisory
FAQ
What is CVE-2026-33981?
CVE-2026-33981 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 e...
How severe is CVE-2026-33981?
CVE-2026-33981 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-33981?
Check the references section above for vendor advisories and patch information. Affected products include: Webtechnologies Changedetection.