CVE-2025-61730 (GCVE-0-2025-61730)
Vulnerability from cvelistv5
Published
2026-01-28 19:30
Modified
2026-02-02 17:28
Summary
During the TLS 1.3 handshake if multiple messages are sent in records that span encryption level boundaries (for instance the Client Hello and Encrypted Extensions messages), the subsequent messages may be processed before the encryption level changes. This can cause some minor information disclosure if a network-local attacker can inject messages during the handshake.
Impacted products
Vendor Product Version
Go standard library crypto/tls Version: 0   
Version: 1.25.0   
Create a notification for this product.
Show details on NVD website


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              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
              "version": "3.1"
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                "timestamp": "2026-02-02T17:28:46.305649Z",
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    "cna": {
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          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "crypto/tls",
          "product": "crypto/tls",
          "programRoutines": [
            {
              "name": "Conn.handleKeyUpdate"
            },
            {
              "name": "Conn.handshakeContext"
            },
            {
              "name": "clientHandshakeStateTLS13.establishHandshakeKeys"
            },
            {
              "name": "clientHandshakeStateTLS13.readServerFinished"
            },
            {
              "name": "clientHandshakeStateTLS13.sendClientFinished"
            },
            {
              "name": "serverHandshakeStateTLS13.checkForResumption"
            },
            {
              "name": "serverHandshakeStateTLS13.doHelloRetryRequest"
            },
            {
              "name": "serverHandshakeStateTLS13.sendServerParameters"
            },
            {
              "name": "serverHandshakeStateTLS13.sendServerFinished"
            },
            {
              "name": "serverHandshakeStateTLS13.readClientFinished"
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              "name": "Conn.quicSetReadSecret"
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              "name": "Conn.Handshake"
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          "url": "https://go.dev/cl/724120"
        },
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          "url": "https://go.dev/issue/76443"
        },
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          "url": "https://groups.google.com/g/golang-announce/c/Vd2tYVM8eUc"
        },
        {
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      "title": "Handshake messages may be processed at the incorrect encryption level in crypto/tls"
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}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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