What’s Vulnerable › Vulnerabilities

CVE-2026-108267: Privasys Go fork: RA-TLS challenge mode did not bind attestation evidence to the TLS session

• Severity: critical (CVSS 9.1 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-09 · updated 2026-10-16
• Weakness: CWE-346

Description

Privasys Go is a maintained fork of the Go programming language that adds RA-TLS support to crypto/tls. Prior to privasys-v0.5.1-go1.26.5, challenge-mode RA-TLS certificates bound quote ReportData to the certificate public key and client nonce but not 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 a handshake terminated by the attacker as an attested enclave connection. This issue is fixed in privasys-v0.5.1-go1.26.5.

Affected products

• Privasys go: before privasys-v0.5.1-go1.26.5

References

• https://github.com/Privasys/go/commit/00a7d21ba53bba0ea09ac7a67eb2c6714e651700
• https://github.com/Privasys/go/releases/tag/privasys-v0.5.1-go1.26.5
• https://github.com/Privasys/go/security/advisories/GHSA-7jfw-53rm-phh2
• https://privasys.org/blog/binding-attestation-to-the-tls-session

Get alerted when CVE-2026-108267 or the next vulnerability affects your stack