CVE-2026-100835

Contrast before 1.16.0 is susceptible to remote attestation relay attacks. Contrast accepted any TEE attestation report that verified correctly and contained the expected firmware patch levels and software measurements, regardless of which machine produced it, so attestation was not bound to specific, physically trusted hardware. An attacker who can both intercept network traffic between the CLI and the Coordinator (or between the Coordinator and an attested component) and forge reports or extract secrets from any single TEE machine under their physical control can relay such a report to impersonate a Contrast Coordinator or a Contrast workload, defeating identity verification in Contrast's attested TLS (aTLS).

CVSS v3 7.4 HIGH

7.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/edgelesssys/contrast/security/advisories/GHSA-hjgc-jc5v-fw7h
https://www.vulncheck.com/advisories/contrast-before-1.16.0-remote-attestation-relay-attack

Configurations

No configuration.

History

27 Sep 2026, 02:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-27 02:17

Updated : 2026-09-30 16:17

NVD link : CVE-2026-100835

Mitre link : CVE-2026-100835

CVE.ORG link : CVE-2026-100835

JSON object : View

Products Affected

No product.

CWE

CWE-295

Improper Certificate Validation

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