CVE-2026-108268GHSA-p5fp-g94g-g9m9
enclave-os-virtual: RA-TLS challenge certificates were not bound to the TLS session
Privasys enclave-os-virtual
CVSS
9.1CriticalExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.13%Chance of exploitation activity in the next 30 days, higher than 2% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Description
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.
Text from CVE List
Affected versions 2
- enclave-os-virtualaffected: < tdx-v0.2.43CVE List
- enclave-os-virtualaffected: < tdx-gpu-v0.6.27CVE List
References 5
- github.com/Privasys/enclave-os-virtual/commit/9a6be91e29f2b6738d0b77c33cd1ad5cd3d8a347Fixvia CVE List
- github.com/Privasys/enclave-os-virtual/releases/tag/tdx-gpu-v0.6.27Fixvia CVE List
- github.com/Privasys/enclave-os-virtual/releases/tag/tdx-v0.2.43Fixvia CVE List
- github.com/Privasys/enclave-os-virtual/security/advisories/GHSA-p5fp-g94g-g9m9Advisoryvia CVE List
- privasys.org/blog/binding-attestation-to-the-tls-sessionReferencevia CVE List