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.
PUBLISHED5.2CWE-346
ra-tls-clients: RA-TLS challenge verifier accepted quotes not bound to the TLS session
Problem type
Affected products
Privasys
ra-tls-clients
< 0.5.0 - AFFECTED
References
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://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://github.com/Privasys/ra-tls-clients/commit/b8de9bcadd0f81ca8882d15095fc0d9c50e40148
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/releases/tag/v0.5.0
https://privasys.org/blog/binding-attestation-to-the-tls-session
https://privasys.org/blog/binding-attestation-to-the-tls-session
JSON source
https://cveawg.mitre.org/api/cve/CVE-2026-108269Click to expand
{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-108269",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"dateUpdated": "2026-10-09T21:15:12.264Z",
"dateReserved": "2026-10-09T17:33:15.410Z",
"datePublished": "2026-10-09T21:15:12.264Z",
"state": "PUBLISHED"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-10-09T21:15:12.264Z"
},
"title": "ra-tls-clients: RA-TLS challenge verifier accepted quotes not bound to the TLS session",
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"affected": [
{
"vendor": "Privasys",
"product": "ra-tls-clients",
"versions": [
{
"version": "< 0.5.0",
"status": "affected"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"description": "CWE-346: Origin Validation Error",
"cweId": "CWE-346",
"type": "CWE"
}
]
}
],
"references": [
{
"url": "https://github.com/Privasys/ra-tls-clients/security/advisories/GHSA-5qrc-v874-mxvx",
"name": "https://github.com/Privasys/ra-tls-clients/security/advisories/GHSA-5qrc-v874-mxvx",
"tags": [
"x_refsource_CONFIRM"
]
},
{
"url": "https://github.com/Privasys/ra-tls-clients/security/advisories/GHSA-5qrc-v874-mxvx",
"name": "https://github.com/Privasys/ra-tls-clients/security/advisories/GHSA-5qrc-v874-mxvx",
"tags": [
"x_refsource_MISC"
]
},
{
"url": "https://github.com/Privasys/ra-tls-clients/commit/b8de9bcadd0f81ca8882d15095fc0d9c50e40148",
"name": "https://github.com/Privasys/ra-tls-clients/commit/b8de9bcadd0f81ca8882d15095fc0d9c50e40148",
"tags": [
"x_refsource_MISC"
]
},
{
"url": "https://github.com/Privasys/ra-tls-clients/releases/tag/v0.5.0",
"name": "https://github.com/Privasys/ra-tls-clients/releases/tag/v0.5.0",
"tags": [
"x_refsource_MISC"
]
},
{
"url": "https://privasys.org/blog/binding-attestation-to-the-tls-session",
"name": "https://privasys.org/blog/binding-attestation-to-the-tls-session",
"tags": [
"x_refsource_MISC"
]
}
],
"metrics": [
{}
]
}
}
}