CVE-2026-71203Network attack vectorHinoki check available

Unauthenticated OpenAPI schema disclosure via unprotected endpoint

Published Aug 5, 2026 · Updated Aug 5, 2026

Information disclosure in dgtlmoon changedetection.io 0.55.7 allows remote attackers to retrieve its full OpenAPI schema. The get() method for the Spec resource at /api/v1/full-spec returns the merged schema without applying the token-checking or request-validation decorators used by sibling API resources. Network access to the endpoint is sufficient; the response exposes endpoint paths, parameters, and installed processor-plugin schemas even when API-key access control is enabled.

CVSS severity5.3
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Information disclosure in dgtlmoon changedetection.io 0.55.7 allows remote attackers to retrieve its full OpenAPI schema. The get() method for the Spec resource at /api/v1/full-spec returns the merged schema without applying the token-checking or request-validation decorators used by sibling API resources. Network access to the endpoint is sufficient; the response exposes endpoint paths, parameters, and installed processor-plugin schemas even when API-key access control is enabled.

The record

CVE
CVE-2026-71203
Published
Aug 5, 2026
Updated
Aug 5, 2026
Vendor
changedetection.io
Product
changedetection.io
Classifications
CWE-306, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=0.55.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

changedetection.io · changedetection.ioversion=0.55.7

Published CVSS scores

5.3TuranSecCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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