CVE-2026-100835Contrast before 1.16.0 Remote Attestation Relay Attack
Updated under an hour ago ()
Does this affect you?
It affects edgelesssys contrast. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.22%, higher than 11% of scored CVEs.
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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
- 7.4 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- Weakness (CWE)
- CWE-295
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.22% (percentile 11)
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Sep 30, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
edgelesssys contrast edgelesssys:contrast (from the name) | before 1.16.0; 1.16.0 not affected | CNA record |
References
- https://github.com/edgelesssys/contrast/security/advisories/GHSA-hjgc-jc5v-fw7hvendor-advisory
- https://www.vulncheck.com/advisories/contrast-before-1.16.0-remote-attestation-relay-attackthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.