CVE-2026-107503: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-g8w6-jp67-cwcc
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CWE-15
Published
Advisory Summary

CVE-2026-107503 is a HIGH security vulnerability vulnerability (CWE-15: External Control of System or Configuration Setting) affecting Software libraries in the Maven ecosystem. The weakness occurs when one or more system settings or configuration elements can be externally controlled by a user.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-107503 at a Glance

CVE Identifier CVE-2026-107503
GHSA Identifier GHSA-g8w6-jp67-cwcc
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification CWE-15: External Control of System or Configuration Setting
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-107503

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-107503, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-15: External Control of System or Configuration Setting, where one or more system settings or configuration elements can be externally controlled by a user. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Unvalidated environments URL allows OAuth authorization code + PKCE verifier theft and account takeover via injected OIDC authority in Ditto Explorer in Eclipse Ditto Ditto Explorer [3.6.0,3.9.7] allows a craft link 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.

References

GitHub Advisory / Wiki ADVISORY
https://github.com/eclipse-ditto/ditto/security/advisories/GHSA-8767-g5qv-9jcf
NVD — CVE-2026-107503 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-107503
Security Fix Commit FIX COMMIT
https://github.com/eclipse-ditto/ditto/commit/71061f0b01df596fad80fb24502eb1e852ea6909
Security Fix Commit FIX COMMIT
https://github.com/eclipse-ditto/ditto/commit/d4e51ba20e53c73e3b24e64d4aca57f6079d9ca1
Security Fix Commit FIX COMMIT
https://github.com/eclipse-ditto/ditto/commit/ee65b8cd9b7219401dcac2c25b79adc8cee4a5ba
eclipse.dev/ditto/release_notes... WEB
https://eclipse.dev/ditto/release_notes_3814.html
eclipse.dev/ditto/release_notes... WEB
https://eclipse.dev/ditto/release_notes_398.html
Software Security Information SECURITY
https://gitlab.eclipse.org/security/cve-assignment/-/work_items/380
Software Security Information SECURITY
https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/1207

Frequently Asked Questions

What is CVE-2026-107503?
CVE-2026-107503 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-15: External Control of System or Configuration Setting.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-107503?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-107503?
CVE-2026-107503 is classified under CWE-15: External Control of System or Configuration Setting (One or more system settings or configuration elements can be externally controlled by a user.).
How can I check Maven dependencies for CVE-2026-107503?
Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-g8w6-jp67-cwcc",
  "modified" : "2026-10-15T18:31:39Z",
  "published" : "2026-10-08T12:34:26Z",
  "aliases" : [ "CVE-2026-107503" ],
  "details" : "Unvalidated environments URL allows OAuth authorization code + PKCE verifier theft and account takeover via injected OIDC authority in Ditto Explorer in Eclipse Ditto Ditto Explorer [3.6.0,3.9.7] allows a craft link 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.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "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"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/eclipse-ditto/ditto/security/advisories/GHSA-8767-g5qv-9jcf"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-107503"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/eclipse-ditto/ditto/commit/71061f0b01df596fad80fb24502eb1e852ea6909"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/eclipse-ditto/ditto/commit/d4e51ba20e53c73e3b24e64d4aca57f6079d9ca1"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/eclipse-ditto/ditto/commit/ee65b8cd9b7219401dcac2c25b79adc8cee4a5ba"
  }, {
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    "url" : "https://eclipse.dev/ditto/release_notes_3814.html"
  }, {
    "type" : "WEB",
    "url" : "https://eclipse.dev/ditto/release_notes_398.html"
  }, {
    "type" : "WEB",
    "url" : "https://gitlab.eclipse.org/security/cve-assignment/-/work_items/380"
  }, {
    "type" : "WEB",
    "url" : "https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/1207"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-15" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-08T10:17:08Z"
  }
}