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Fencer Vulns
medium 6.8

CVE-2024-4536 json

Eclipse EDC: OAuth2 Credential Exfiltration Vulnerability

published 2024-05-07 2 y ago modified 2026-06-17 4 mo ago also GHSA-2x52-8f29-7cjr , EUVD-2024-1371

cvss
6.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 35%
public exploits
0
none known

Summary

In Eclipse Dataspace Components from version 0.2.1 to 0.6.2, in the EDC Connector component ( https://github.com/eclipse-edc/Connector ), an attacker might obtain OAuth2 client secrets from the vault.

In Eclipse Dataspace Components from version 0.2.1 to 0.6.2, we have identified a security vulnerability in the EDC Connector component ( https://github.com/eclipse-edc/Connector ) regarding the OAuth2-protected data sink feature. When using a custom, OAuth2-protected data sink, the OAuth2-specific data address properties are resolved by the provider data plane. Problematically, the consumer-provided clientSecretKey, which indicates the OAuth2 client secret to retrieve from a secrets vault, is resolved in the context of the provider's vault, not the consumer. This secret's value is then sent to the tokenUrl, also consumer-controlled, as part of an OAuth2 client credentials grant. The returned access token is then sent as a bearer token to the data sink URL.

This feature is now disabled entirely, because not all code paths necessary for a successful realization were fully implemented.

Patch / fix

  • maven org.eclipse.edc:connector-core 0.6.3
  • eclipse edc_connector 0.6.3

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.8 CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L
NVD 3.1 5.3 CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:L/A:L
GitHub 3.1 6.8 CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L

Affected packages

ecosystem package affected fixed in
maven org.eclipse.edc:connector-core
>=0.2.1, <0.6.3
0.6.3

Affected products

  • Eclipse Foundation EDC
  • eclipse_foundation edc

Classification

Weakness
  • CWE-201 Insertion of Sensitive Information Into Sent Data
  • CWE-522 Insufficiently Protected Credentials

References

Sources

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