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CVE-2026-33981— Changedetection.io Discloses Environment Variables via jq env Builtin in Include Filters

Quick assessment

Affected
dgtlmoon changedetection.io
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

changedetection.io是dgtlmoon个人开发者的一个网站变更检测、监控和通知应用程序。 changedetection.io 0.54.7之前版本存在信息泄露漏洞，该漏洞源于jq:和jqraw:包含过滤器表达式允许使用jq env内置函数，可能导致敏感环境变量泄露。

AI Predicted 8.1 Difficulty: Easy EPSS 0.48% · P40

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-33981

Vulnerability Information
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Vulnerability Title
Changedetection.io Discloses Environment Variables via jq env Builtin in Include Filters
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
changedetection.io 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
changedetection.io是dgtlmoon个人开发者的一个网站变更检测、监控和通知应用程序。 changedetection.io 0.54.7之前版本存在信息泄露漏洞，该漏洞源于jq:和jqraw:包含过滤器表达式允许使用jq env内置函数，可能导致敏感环境变量泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
dgtlmoon changedetection.io < 0.54.7 -

II. Public POCs for CVE-2026-33981

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III. Intelligence Information for CVE-2026-33981

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Patches & Fixes for CVE-2026-33981 (1)

Vendor Advisories for CVE-2026-33981 (1)

Vendor Pages for CVE-2026-33981 (1)

IV. Related Vulnerabilities

Same product: changedetection.io
Same vendor: dgtlmoon
Same weakness: CWE-200

V. Comments for CVE-2026-33981

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