CVE-2026-107503

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-107503
StatePUBLISHED
Assignereclipse
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-08 10:17:08 UTC
Updated2026-10-15 14:17:15 UTC
DescriptionIn Eclipse Ditto versions 3.6.0 to 3.8.13 and 3.9.0 to 3.9.7, the Ditto Explorer UI loads its complete environment configuration, including the Ditto API URI and the OpenID Connect (OIDC) provider settings, from an arbitrary cross-origin URL supplied in the environmentsURL query parameter. It adopts this configuration without user confirmation and persists it in the browser's localStorage. A crafted link can therefore set an attacker-controlled OIDC authority with autoSso enabled. The UI then automatically starts a login at the genuine identity provider but exchanges the returned authorization code together with its PKCE code_verifier at an attacker-controlled token endpoint. This lets the attacker redeem the code for the victim's access and refresh tokens. Alternatively, an attacker-controlled api_uri causes the UI to send the victim's bearer token or Basic credentials to the attacker. Because the configuration is persisted, later visits to the UI without the crafted link repeat the token theft. In versions 3.9.0 to 3.9.7, the Swagger UI OIDC integration of the Helm chart and the Docker Compose deployment is affected in the same way, but requires the user to start the login. The issue is fixed in 3.8.14 and 3.9.8.

Risk And Classification

Primary CVSS: v4.0 7.1 HIGH from [email protected]

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:L/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.001750000 probability, percentile 0.064630000 (date 2026-10-10)

Problem Types: CWE-15 | CWE-346 | CWE-522 | CWE-15 CWE-15 External control of system or configuration setting | CWE-346 CWE-346 Origin Validation Error | CWE-522 CWE-522 Insufficiently Protected Credentials

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary7.1HIGHCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:L/VA:N/SC:H/SI:H/SA:N/E:X/C...
4.0CNACVSS7.1HIGHCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:L/VA:N/SC:H/SI:H/SA:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
None
User Interaction
Active
Confidentiality
High
Integrity
Low
Availability
None
Sub Conf.
High
Sub Integrity
High
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:L/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Eclipse Ditto Ditto Explorer UI affected 3.6.0 3.8.14 semver Not specified
CNA Eclipse Ditto Ditto Explorer UI affected 3.9.0 3.9.8 semver Not specified

References

ReferenceSourceLinkTags
eclipse.dev/ditto/release_notes_3814.html [email protected] eclipse.dev
github.com/eclipse-ditto/ditto/commit/ee65b8cd9b7219401dcac2c25b79adc8ce... [email protected] github.com
gitlab.eclipse.org/security/vulnerability-reports/-/work_items/1207 [email protected] gitlab.eclipse.org
github.com/eclipse-ditto/ditto/commit/d4e51ba20e53c73e3b24e64d4aca57f607... [email protected] github.com
gitlab.eclipse.org/security/cve-assignment/-/work_items/380 [email protected] gitlab.eclipse.org
eclipse.dev/ditto/release_notes_398.html [email protected] eclipse.dev
github.com/eclipse-ditto/ditto/commit/71061f0b01df596fad80fb24502eb1e852... [email protected] github.com
github.com/eclipse-ditto/ditto/security/advisories/GHSA-8767-g5qv-9jcf [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: IAmNobodyAnyway (en)

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