CVE-2026-84175Network attack vectorHinoki check available

Authenticated SSRF via unvalidated ThingModel URLs

Published Sep 2, 2026 · Updated Sep 2, 2026

Server-side request forgery in Eclipse Ditto 2.4.0 through 3.9.6 allows remote authenticated users to reach internal HTTP services. The Things service fetches Thing or Feature definition URLs without validating destinations and follows redirects without rechecking targets or limiting hops. Reachability requires permission to create a Thing or WRITE an existing Thing; response differences expose an internal-service oracle, while redirect loops occupy a dispatcher thread until timeout.

CVSS severity5.3
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Server-side request forgery in Eclipse Ditto 2.4.0 through 3.9.6 allows remote authenticated users to reach internal HTTP services. The Things service fetches Thing or Feature definition URLs without validating destinations and follows redirects without rechecking targets or limiting hops. Reachability requires permission to create a Thing or WRITE an existing Thing; response differences expose an internal-service oracle, while redirect loops occupy a dispatcher thread until timeout.

The record

CVE
CVE-2026-84175
Published
Sep 2, 2026
Updated
Sep 2, 2026
Vendor
The Eclipse Foundation
Product
Eclipse Ditto
Classifications
CWE-674, CWE-918, T1046
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 2, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.4.0 <3.0.0
  2. Affected versionversion=3.0.0 <=3.8.12
  3. Affected versionversion=3.9.0 <=3.9.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

The Eclipse Foundation · Eclipse Dittoversion=2.4.0 <3.0.0; version=3.0.0 <=3.8.12; version=3.9.0 <=3.9.6

Published CVSS scores

5.3Eclipse FoundationCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:L/SI:N/SA: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-674Uncontrolled Recursion
CWE-918Server-Side Request Forgery (SSRF)
T1046Network Service Discovery

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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