changedetection.io: XXE vulnerability in the changedetection.io project
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- Present
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-611 and the CVSS impact.
Summary
changedetection.io is a free open source web page change detection tool. In 0.54.9 and earlier, xpath_filter() switches to XML mode for XML/RSS content and creates etree.XMLParser(strip_cdata=False) without explicitly disabling external entity resolution, external DTD loading, or network-backed entity lookup. The helper then parses untrusted XML bytes directly with etree.fromstring(...).
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| dgtlmoon | changedetection.io | up to 0.54.9 | — | No fix listed | CNA |
| — | changedetection.io (PyPI) | up to 0.54.9 | — | No fix listed | GHSA-v7cp-2cx9-x793 |
- changedetection.io Vendordgtlmoon Affected up to 0.54.9 Fixed in — No fix listed CNA
- changedetection.io (PyPI) Vendor— Affected up to 0.54.9 Fixed in — No fix listed GHSA-v7cp-2cx9-x793
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-41895
- 2026-10-03 Alias added: GHSA-v7cp-2cx9-x793
References
More dgtlmoon Changedetection vulnerabilities
- TI-2026-27619 changedetection.io has an Authentication Bypass via Decorator Ordering CVSS 3.1CRITICAL 9.8
- TI-2026-23210 changedetection.io: Zip Slip vulnerability in the backup restore functionality CVSS 4.0HIGH 8.8
- TI-2026-22073 changedetection.io Vulnerable to Server-Side Request Forgery (SSRF) via Watch URLs CVSS 3.1HIGH 8.6
- TI-2026-26322 Changedetection.io Discloses Environment Variables via jq env Builtin in Include Filters CVSS 4.0HIGH 8.3
- TI-2026-23185 changedetection.io: XPath - Arbitrary File Read via unparsed-text() CVSS 4.0HIGH 8.8
- TI-2026-31955 changedetection.io: Arbitrary Local File Read via crafted backup restore CVSS 3.1HIGH 7.5
Sources
- CVE-2026-41895 · CVE Program
- CVE-2026-41895 · NVD
- FIRST EPSS
- GHSA-v7cp-2cx9-x793 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences