CVE-2026-108269

Description

Remote Attestation TLS Clients provides multi-language utilities for verifying attested TLS connections. Prior to 0.5.0, the Rust and Go RA-TLS challenge verifiers accepted quote ReportData that was bound to the certificate public key and client nonce but not to the active TLS session before permitting application traffic. An attacker who obtained an enclave TLS private key could relay a genuine quote onto another connection, causing the clients to accept an attacker-terminated connection as the attested enclave. This issue is fixed in 0.5.0.

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Weakness Type (CWE)

CWE-346 CWE-346

References

Other References

https://github.com/Privasys/ra-tls-clients/commit/b8de9bcadd0f81ca8882d15095fc0d9c50e40148 https://github.com/Privasys/ra-tls-clients/releases/tag/v0.5.0 https://github.com/Privasys/ra-tls-clients/security/advisories/GHSA-5qrc-v874-mxvx https://github.com/Privasys/ra-tls-clients/security/advisories/GHSA-5qrc-v874-mxvx https://privasys.org/blog/binding-attestation-to-the-tls-session

Frequently Asked Questions

What is CVE-2026-108269? +

Remote Attestation TLS Clients provides multi-language utilities for verifying attested TLS connections. Prior to 0.5.0, the Rust and Go RA-TLS challenge verifiers accepted quote ReportData that was bound to the certificate public key and client nonce but not to the active TLS session before permitting application traffic. An attacker who obtained an enclave TLS private key could relay a genuine quote onto another connection, causing the clients to accept an attacker-terminated connection as the attested enclave. This issue is fixed in 0.5.0.

How do I check if I'm vulnerable to CVE-2026-108269? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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