CVE-2026-108268CWE-346

CVE-2026-108268

published October 10, 2026

CVSS
9.1
EPSS
0%
Percentile
2.2
In the wild
Unconfirmed
What it is

Enclave OS Virtual runs container workloads inside confidential virtual machines with end-to-end attestation. Prior to tdx-v0.2.43 and tdx-gpu-v0.6.27, the TDX/GPU RA-TLS certificate issuer placed the certificate public-key hash and client nonce in quote ReportData but omitted a value bound to the active TLS session. An attacker who obtained an enclave TLS private key could relay a genuine quote onto another connection, causing a relying party to accept an attacker-terminated connection as the attested enclave. This issue is fixed in tdx-v0.2.43 and tdx-gpu-v0.6.27.

The record
Technical detail
CVSS
9.1 · NONE
CVSS v4.0
9.1 · CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00128 · 2.2th percentile
Weakness
CWE-346 · Origin Validation Error
Published
2026-10-10T02:16Z
References (5)
EPSS history
Timeline
  • 11 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 09 OCT 21:13Z
    enclave-os-virtual: RA-TLS challenge certificates were not bound to the TLS session
    cvelistv5
  • 09 OCT 21:13Z
    enclave-os-virtual: RA-TLS challenge certificates were not bound to the TLS session
    cvelistv5