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    2 vulnerabilities found for rustls by Privasys

    CVE-2026-108266 (GCVE-0-2026-108266)

    Vulnerability from nvd – Published: 2026-10-09 21:00 – Updated: 2026-10-09 21:00
    VLAI
    Title
    Privasys rustls fork: RA-TLS challenge mode did not bind attestation evidence to the TLS session
    Summary
    Privasys rustls is a maintained fork of the rustls TLS library that adds RA-TLS challenge and channel-binding support. Prior to privasys-v0.8.1, the fork emitted RA-TLS challenge certificates whose quote ReportData was bound 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 an attacker-terminated connection as the attested enclave. This issue is fixed in privasys-v0.8.1.
    Severity
    9.1 (Critical)
    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
    CWE
    • CWE-346 - Origin Validation Error
    Assigner
    GitHub_M CNA under the mitre root
    CNA scorecard C 72/100 over 7552 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    Privasys rustls Affected: < privasys-v0.8.1
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "rustls",
          "vendor": "Privasys",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c privasys-v0.8.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Privasys rustls is a maintained fork of the rustls TLS library that adds RA-TLS challenge and channel-binding support. Prior to privasys-v0.8.1, the fork emitted RA-TLS challenge certificates whose quote ReportData was bound 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 an attacker-terminated connection as the attested enclave. This issue is fixed in privasys-v0.8.1."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-346",
              "description": "CWE-346: Origin Validation Error",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-09T21:00:19.595Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/Privasys/rustls/security/advisories/GHSA-j6qv-435v-r492",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/Privasys/rustls/security/advisories/GHSA-j6qv-435v-r492"
        },
        {
          "name": "https://github.com/Privasys/rustls/commit/ab630583b58fee84260cbbfe2f4a8b45d8bde200",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Privasys/rustls/commit/ab630583b58fee84260cbbfe2f4a8b45d8bde200"
        },
        {
          "name": "https://github.com/Privasys/rustls/releases/tag/privasys-v0.8.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Privasys/rustls/releases/tag/privasys-v0.8.1"
        },
        {
          "name": "https://privasys.org/blog/binding-attestation-to-the-tls-session",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://privasys.org/blog/binding-attestation-to-the-tls-session"
        }
      ],
      "source": {
        "advisory": "GHSA-j6qv-435v-r492",
        "discovery": "UNKNOWN"
      },
      "title": "Privasys rustls fork: RA-TLS challenge mode did not bind attestation evidence to the TLS session"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-108266",
    "datePublished": "2026-10-09T21:00:19.595Z",
    "dateReserved": "2026-10-09T17:33:15.410Z",
    "dateUpdated": "2026-10-09T21:00:19.595Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2026-108266 (GCVE-0-2026-108266)

    Vulnerability from cvelistv5 – Published: 2026-10-09 21:00 – Updated: 2026-10-09 21:00
    VLAI
    Title
    Privasys rustls fork: RA-TLS challenge mode did not bind attestation evidence to the TLS session
    Summary
    Privasys rustls is a maintained fork of the rustls TLS library that adds RA-TLS challenge and channel-binding support. Prior to privasys-v0.8.1, the fork emitted RA-TLS challenge certificates whose quote ReportData was bound 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 an attacker-terminated connection as the attested enclave. This issue is fixed in privasys-v0.8.1.
    Severity
    9.1 (Critical)
    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
    CWE
    • CWE-346 - Origin Validation Error
    Assigner
    GitHub_M CNA under the mitre root
    CNA scorecard C 72/100 over 7552 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    Privasys rustls Affected: < privasys-v0.8.1
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "rustls",
          "vendor": "Privasys",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c privasys-v0.8.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Privasys rustls is a maintained fork of the rustls TLS library that adds RA-TLS challenge and channel-binding support. Prior to privasys-v0.8.1, the fork emitted RA-TLS challenge certificates whose quote ReportData was bound 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 an attacker-terminated connection as the attested enclave. This issue is fixed in privasys-v0.8.1."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "HIGH",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-346",
              "description": "CWE-346: Origin Validation Error",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-09T21:00:19.595Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/Privasys/rustls/security/advisories/GHSA-j6qv-435v-r492",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/Privasys/rustls/security/advisories/GHSA-j6qv-435v-r492"
        },
        {
          "name": "https://github.com/Privasys/rustls/commit/ab630583b58fee84260cbbfe2f4a8b45d8bde200",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Privasys/rustls/commit/ab630583b58fee84260cbbfe2f4a8b45d8bde200"
        },
        {
          "name": "https://github.com/Privasys/rustls/releases/tag/privasys-v0.8.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Privasys/rustls/releases/tag/privasys-v0.8.1"
        },
        {
          "name": "https://privasys.org/blog/binding-attestation-to-the-tls-session",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://privasys.org/blog/binding-attestation-to-the-tls-session"
        }
      ],
      "source": {
        "advisory": "GHSA-j6qv-435v-r492",
        "discovery": "UNKNOWN"
      },
      "title": "Privasys rustls fork: RA-TLS challenge mode did not bind attestation evidence to the TLS session"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-108266",
    "datePublished": "2026-10-09T21:00:19.595Z",
    "dateReserved": "2026-10-09T17:33:15.410Z",
    "dateUpdated": "2026-10-09T21:00:19.595Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}