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Critical

Contrast before 1.16.0 Remote Attestation Relay Attack

Type: advisorySource: Official CVE List1 source record

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).

Announced Source revision 1
Original source ↗

CVE-2026-100835

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-100835

contrast

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "edgelesssys",
    "product": "contrast",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "1.16.0",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "1.16.0",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-100835

Source reference: /cveMetadata/cveId

Publisher severity

critical

Source reference: /containers/cna/metrics

Event
#4455 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement