cve-2023-35941
Vulnerability from cvelistv5
Published
2023-07-25 17:40
Modified
2024-08-02 16:37
Severity
Summary
Envoy vulnerable to OAuth2 credentials exploit with permanent validity
Impacted products
VendorProduct
envoyproxyenvoy
Show details on NVD website


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          "dateUpdated": "2024-08-02T16:37:40.557Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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            "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-7mhv-gr67-hq55"
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        "title": "CVE Program Container"
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    "cna": {
      "affected": [
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          "product": "envoy",
          "vendor": "envoyproxy",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 1.26.0, \u003c 1.26.4"
            },
            {
              "status": "affected",
              "version": "\u003e= 1.25.0, \u003c 1.25.9"
            },
            {
              "status": "affected",
              "version": "\u003e= 1.24.0, \u003c 1.24.10"
            },
            {
              "status": "affected",
              "version": "\u003c 1.23.12"
            }
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          "lang": "en",
          "value": "Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, a malicious client is able to construct credentials with permanent validity in some specific scenarios. This is caused by the some rare scenarios in which HMAC payload can be always valid in OAuth2 filter\u0027s check. Versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12 have a fix for this issue. As a workaround, avoid wildcards/prefix domain wildcards in the host\u0027s domain configuration."
        }
      ],
      "metrics": [
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          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L",
            "version": "3.1"
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      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-116",
              "description": "CWE-116: Improper Encoding or Escaping of Output",
              "lang": "en",
              "type": "CWE"
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      "providerMetadata": {
        "dateUpdated": "2023-07-25T17:40:56.203Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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      "source": {
        "advisory": "GHSA-7mhv-gr67-hq55",
        "discovery": "UNKNOWN"
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      "title": "Envoy vulnerable to OAuth2 credentials exploit with permanent validity"
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    "cveId": "CVE-2023-35941",
    "datePublished": "2023-07-25T17:40:56.203Z",
    "dateReserved": "2023-06-20T14:02:45.596Z",
    "dateUpdated": "2024-08-02T16:37:40.557Z",
    "state": "PUBLISHED"
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