CVE-2026-100835

Contrast before 1.16.0 Remote Attestation Relay Attack

HIGH
7.4
CVSS Score
Published: September 27, 2026 at 01:28 AM UTC
Updated: September 30, 2026 at 04:17 PM UTC
1 product affected across 1 vendorContrast

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Severity
HIGH7.4
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

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).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.16.0
Vendor states this is fixed in 1.16.0 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.4HIGHVulnCheck
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-295

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