Vulnerability · Published Oct 9, 2026 · Assigned by GitHub_M

CVE-2026-108265enclave-os-mini: RA-TLS challenge certificates were not bound to the TLS session

Critical 9.1

In plain English

A critical-severity security flaw in enclave-os-mini from Privasys. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).

Severity (CVSS 4.0)9.1Critical

Exploit odds (30 days)0.1%top 98.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Enclave OS Mini is a Rust-based runtime for confidential applications inside Intel SGX enclaves. Prior to wasm-v0.40.0, the SGX runtime's RA-TLS challenge certificate path 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 wasm-v0.40.0.

Affected products (as reported)

Vendor	Product	Versions
Privasys	enclave-os-mini	< wasm-v0.40.0

Weakness: CWE-346 · Vector: 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

References

https://github.com/Privasys/enclave-os-mini/security/advisories/GHSA-49qm-4pj3-w2c6 x_refsource_CONFIRM
https://github.com/Privasys/enclave-os-mini/commit/9f541c849ef733d2df2851a666f359d01dcdcb8e x_refsource_MISC
https://github.com/Privasys/enclave-os-mini/releases/tag/wasm-v0.40.0 x_refsource_MISC
https://privasys.org/blog/binding-attestation-to-the-tls-session x_refsource_MISC