CVE-2026-108269GHSA-5qrc-v874-mxvx
ra-tls-clients: RA-TLS challenge verifier accepted quotes not bound to the TLS session
Privasys ra-tls-clients
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
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.
Text from CVE List
Affected versions 1
- ra-tls-clientsaffected: < 0.5.0CVE List
References 4
- github.com/Privasys/ra-tls-clients/commit/b8de9bcadd0f81ca8882d15095fc0d9c50e40148Fixvia CVE List
- github.com/Privasys/ra-tls-clients/releases/tag/v0.5.0Fixvia CVE List
- github.com/Privasys/ra-tls-clients/security/advisories/GHSA-5qrc-v874-mxvxAdvisoryvia CVE List
- privasys.org/blog/binding-attestation-to-the-tls-sessionReferencevia CVE List