Common Weakness Enumeration

CWE-863

Allowed-with-Review

Incorrect Authorization

Abstraction: Class · Status: Incomplete

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

7172 vulnerabilities reference this CWE, most recent first.

GHSA-HR5M-VVHF-96CX

Vulnerability from github – Published: 2022-05-14 02:58 – Updated: 2025-04-20 03:47
VLAI
Details

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Client programs). Supported versions that are affected are 5.5.57 and earlier, 5.6.37 and earlier and 5.7.19 and earlier. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MySQL Server accessible data. CVSS 3.0 Base Score 6.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2017-10379"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200",
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-10-19T17:29:00Z",
    "severity": "MODERATE"
  },
  "details": "Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Client programs). Supported versions that are affected are 5.5.57 and earlier, 5.6.37 and earlier and 5.7.19 and earlier. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MySQL Server accessible data. CVSS 3.0 Base Score 6.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).",
  "id": "GHSA-hr5m-vvhf-96cx",
  "modified": "2025-04-20T03:47:14Z",
  "published": "2022-05-14T02:58:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-10379"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:3265"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:3442"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:0279"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:0574"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:2439"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:2729"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20171019-0002"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2017/dsa-4002"
    },
    {
      "type": "WEB",
      "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/101415"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1039597"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-HR65-WXM7-W4JV

Vulnerability from github – Published: 2022-10-06 18:52 – Updated: 2022-10-08 00:00
VLAI
Details

A Incorrect Authorization vulnerability in chkstat of SUSE Linux Enterprise Server 12-SP5; openSUSE Leap 15.3, openSUSE Leap 15.4, openSUSE Leap Micro 5.2 did not consider group writable path components, allowing local attackers with access to a group what can write to a location included in the path to a privileged binary to influence path resolution. This issue affects: SUSE Linux Enterprise Server 12-SP5 permissions versions prior to 20170707. openSUSE Leap 15.3 permissions versions prior to 20200127. openSUSE Leap 15.4 permissions versions prior to 20201225. openSUSE Leap Micro 5.2 permissions versions prior to 20181225.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-31252"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-10-06T18:16:00Z",
    "severity": "MODERATE"
  },
  "details": "A Incorrect Authorization vulnerability in chkstat of SUSE Linux Enterprise Server 12-SP5; openSUSE Leap 15.3, openSUSE Leap 15.4, openSUSE Leap Micro 5.2 did not consider group writable path components, allowing local attackers with access to a group what can write to a location included in the path to a privileged binary to influence path resolution. This issue affects: SUSE Linux Enterprise Server 12-SP5 permissions versions prior to 20170707. openSUSE Leap 15.3 permissions versions prior to 20200127. openSUSE Leap 15.4 permissions versions prior to 20201225. openSUSE Leap Micro 5.2 permissions versions prior to 20181225.",
  "id": "GHSA-hr65-wxm7-w4jv",
  "modified": "2022-10-08T00:00:20Z",
  "published": "2022-10-06T18:52:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-31252"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.suse.com/show_bug.cgi?id=1203018"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-HR74-5GWV-789V

Vulnerability from github – Published: 2025-01-17 00:30 – Updated: 2025-02-03 21:31
VLAI
Details

An issue in OPEXUS FOIAXPRESS PUBLIC ACCESS LINK v11.1.0 allows attackers to bypass authentication via crafted web requests.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-53553"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-01-16T23:15:07Z",
    "severity": "CRITICAL"
  },
  "details": "An issue in OPEXUS FOIAXPRESS PUBLIC ACCESS LINK v11.1.0 allows attackers to bypass authentication via crafted web requests.",
  "id": "GHSA-hr74-5gwv-789v",
  "modified": "2025-02-03T21:31:49Z",
  "published": "2025-01-17T00:30:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53553"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Turbul3nce/Vulnerability.Research/tree/main/CVE-2024-53553"
    },
    {
      "type": "WEB",
      "url": "https://infosecwriteups.com/exploiting-execute-after-redirect-ear-vulnerability-in-htb-previse-92ea3f1dbf3d"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-HR8P-P44M-Q8X6

Vulnerability from github – Published: 2022-06-16 00:00 – Updated: 2025-01-02 21:31
VLAI
Details

Kerberos AppContainer Security Feature Bypass Vulnerability.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-30164"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-06-15T22:15:00Z",
    "severity": "HIGH"
  },
  "details": "Kerberos AppContainer Security Feature Bypass Vulnerability.",
  "id": "GHSA-hr8p-p44m-q8x6",
  "modified": "2025-01-02T21:31:38Z",
  "published": "2022-06-16T00:00:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-30164"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-30164"
    },
    {
      "type": "WEB",
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-30164"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/167716/Windows-Kerberos-KerbRetrieveEncodedTicketMessage-AppContainer-Privilege-Escalation.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-HRPQ-69MG-72V6

Vulnerability from github – Published: 2025-01-28 00:32 – Updated: 2025-01-28 18:31
VLAI
Details

The issue was addressed with improved checks. This issue is fixed in macOS Sequoia 15.2, watchOS 11.2, visionOS 2.2, iOS 18.2 and iPadOS 18.2. Password autofill may fill in passwords after failing authentication.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-54530"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862",
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-01-27T22:15:13Z",
    "severity": "CRITICAL"
  },
  "details": "The issue was addressed with improved checks. This issue is fixed in macOS Sequoia 15.2, watchOS 11.2, visionOS 2.2, iOS 18.2 and iPadOS 18.2. Password autofill may fill in passwords after failing authentication.",
  "id": "GHSA-hrpq-69mg-72v6",
  "modified": "2025-01-28T18:31:26Z",
  "published": "2025-01-28T00:32:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-54530"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/121837"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/121839"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/121843"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/121845"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-HRQV-FQ7G-698J

Vulnerability from github – Published: 2023-12-06 15:30 – Updated: 2023-12-12 18:31
VLAI
Details

TOTOLINK A3002RU version 2.0.0-B20190902.1958 has a post-authentication RCE due to incorrect access control, allows attackers to bypass front-end security restrictions and execute arbitrary code.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-48859"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-12-06T15:15:06Z",
    "severity": "HIGH"
  },
  "details": "TOTOLINK A3002RU version 2.0.0-B20190902.1958 has a post-authentication RCE due to incorrect access control, allows attackers to bypass front-end security restrictions and execute arbitrary code.",
  "id": "GHSA-hrqv-fq7g-698j",
  "modified": "2023-12-12T18:31:31Z",
  "published": "2023-12-06T15:30:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-48859"
    },
    {
      "type": "WEB",
      "url": "https://github.com/xieqiang11/security_research/blob/main/TOTOLINK-A3002RU-RCE.md"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-HRV3-FV5C-H4M4

Vulnerability from github – Published: 2022-05-24 17:43 – Updated: 2022-07-13 00:01
VLAI
Details

Improper access control vulnerability in SolarView Compact SV-CPT-MC310 prior to Ver.6.5 allows an authenticated attacker to obtain and/or alter the setting information without the access privilege via unspecified vectors.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2021-20657"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-02-24T12:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Improper access control vulnerability in SolarView Compact SV-CPT-MC310 prior to Ver.6.5 allows an authenticated attacker to obtain and/or alter the setting information without the access privilege via unspecified vectors.",
  "id": "GHSA-hrv3-fv5c-h4m4",
  "modified": "2022-07-13T00:01:05Z",
  "published": "2022-05-24T17:43:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-20657"
    },
    {
      "type": "WEB",
      "url": "https://jvn.jp/en/jp/JVN37417423/index.html"
    },
    {
      "type": "WEB",
      "url": "https://www.contec.com/jp/api/downloadlogger?download=https://www.contec.com/jp/-/media/contec/jp/support/security-info/contec_security_solarview_210216.pdf"
    },
    {
      "type": "WEB",
      "url": "https://www.contec.com/jp/download/contract/contract2/?itemid=b28c8b7c-9f40-40b2-843c-b5b04c035b0e\u0026downloaditemid=fa248fba-8901-4d9e-8212-b139f2defbdf"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-HRV7-95M4-5F4G

Vulnerability from github – Published: 2022-05-24 19:19 – Updated: 2022-07-13 00:01
VLAI
Details

Potential security vulnerabilities have been discovered on a certain HP LaserJet Pro printer that may allow an unauthorized user to reconfigure, reset the device.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2021-3705"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-11-01T14:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "Potential security vulnerabilities have been discovered on a certain HP LaserJet Pro printer that may allow an unauthorized user to reconfigure, reset the device.",
  "id": "GHSA-hrv7-95m4-5f4g",
  "modified": "2022-07-13T00:01:32Z",
  "published": "2022-05-24T19:19:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3705"
    },
    {
      "type": "WEB",
      "url": "https://support.hp.com/us-en/document/ish_4411563-4411589-16/hpsbpi03741"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-HRX4-Q45P-XFR7

Vulnerability from github – Published: 2022-09-29 00:00 – Updated: 2022-09-29 00:00
VLAI
Details

Smart eVision has inadequate authorization for the database query function. A remote attacker with general user privilege, who is not explicitly authorized to access the information, can access sensitive information.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-39029"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-09-28T04:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Smart eVision has inadequate authorization for the database query function. A remote attacker with general user privilege, who is not explicitly authorized to access the information, can access sensitive information.",
  "id": "GHSA-hrx4-q45p-xfr7",
  "modified": "2022-09-29T00:00:27Z",
  "published": "2022-09-29T00:00:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-39029"
    },
    {
      "type": "WEB",
      "url": "https://www.twcert.org.tw/tw/cp-132-6566-3805b-1.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-HRXH-6V49-42GF

Vulnerability from github – Published: 2026-07-21 22:03 – Updated: 2026-07-21 22:03
VLAI
Summary
gRPC-Go: xDS RBAC and HTTP/2 Vulnerabilities
Details

Multiple security vulnerabilities have been identified and addressed in grpc-go affecting the xDS RBAC authorization engine (internal/xds/rbac) and the HTTP/2 transport server implementation (internal/transport). These vulnerabilities could result in:

  • Authorization Bypass (Fail-Open) when translating xDS RBAC policies containing Metadata or RequestedServerName fields.
  • Denial of Service (High CPU Consumption) due to an HTTP/2 Rapid Reset mitigation bypass during client-initiated stream resets.
  • Denial of Service (Server Panic) when parsing crafted xDS RBAC policies containing NOT rules around unsupported fields.

Impact

What kind of vulnerability is it? Who is impacted?

xDS RBAC Authorization Bypass via Metadata & RequestedServerName matchers

  • Affected Component: xDS RBAC
  • Impact: When building policy matchers for gRPC RBAC from xDS configurations, unsupported permission and principal rules (specifically Metadata and RequestedServerName) were silently ignored and treated as no-ops.
  • If an authorization policy relied purely on these matchers for access control, treating those rules as no-ops effectively removed the restrictions.
  • If these unsupported rules were nested inside logical NOT rules (Permission_NotRule / Principal_NotId) or multi-condition OR/AND rules, silently dropping them changed the boolean logic flow of the authorization engine.

As a result, policy evaluation decisions could fail open, allowing unauthorized clients to access protected gRPC services or resources.

HTTP/2 Rapid Reset Mitigation Bypass / Denial of Service via Stream Aborts

  • Affected Component: HTTP/2 transport
  • Impact: Earlier mitigations in grpc-go for HTTP/2 Rapid Reset only applied threshold checks to items that directly resulted in control frames being written back to the wire, such as SETTINGS ACKs or server-initiated RST_STREAMs.

When a client initiated a rapid flood of stream creation (HEADERS) immediately followed by stream termination RST_STREAM, items queued up in the control buffer without counting against the transport response frame threshold. An attacker can repeatedly trigger this flood sequence to bypass reader blocking, resulting in high CPU usage, and Denial of Service (DoS).

Denial of Service (Panic) in xDS RBAC Engine via Unsupported Fields inside NOT Rules

  • Affected Component: xDS RBAC
  • Impact: The xDS RBAC policy translators recursively generate matchers for nested rules. When a NOT rule wrapped an unsupported or unhandled field (such as SourcedMetadata), the recursive step returned an empty matcher. This could result in a runtime panic when the RBAC engine attempts to authorize an incoming request.

An attacker or misconfigured/malicious xDS management server delivering an LDS/RDS update containing a NOT rule around an unhandled field causes the gRPC server process to crash immediately (CWE-248 / Denial of Service).

Patches

Has the problem been patched? What versions should users upgrade to?

All three issues have been fixed in master and will be released in 1.82.1 shortly.

Workarounds

Is there a way for users to fix or remediate the vulnerability without upgrading?

If upgrading grpc-go immediately is not possible, apply the following workarounds based on your deployment architecture:

  • For xDS RBAC Vulnerabilities & Panics: Ensure that upstream xDS management servers do not push RBAC policies containing Metadata, RequestedServerName, or NOT rules wrapping unsupported fields (such as SourcedMetadata) to grpc-go servers.
  • For HTTP/2 Rapid Reset DOS: Configure upstream reverse proxies or load balancers (such as Envoy) with strict HTTP/2 max_concurrent_streams limits and active rate limiting on RST_STREAM frequency per connection.

Severity

Vulnerability Qualitative Severity Approximate CVSS v3.1 Score Primary Impact
xDS RBAC Authorization Bypass High 8.2 Unauthorized Access / Fail-Open
HTTP/2 Rapid Reset DOS Bypass High 7.5 High CPU Consumption / Denial of Service
xDS RBAC Engine Server Panic Medium 5.9 Process Crash / Denial of Service
Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "google.golang.org/grpc"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.82.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-248",
      "CWE-770",
      "CWE-863"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-21T22:03:55Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "Multiple security vulnerabilities have been identified and addressed in grpc-go affecting the xDS RBAC authorization engine (internal/xds/rbac) and the HTTP/2 transport server implementation (internal/transport). These vulnerabilities could result in:\n\n- Authorization Bypass (Fail-Open) when translating xDS RBAC policies containing `Metadata` or `RequestedServerName` fields.\n- Denial of Service (High CPU Consumption) due to an HTTP/2 Rapid Reset mitigation bypass during client-initiated stream resets.\n- Denial of Service (Server Panic) when parsing crafted xDS RBAC policies containing `NOT` rules around unsupported fields.\n\n\n### Impact\n_What kind of vulnerability is it? Who is impacted?_\n\n#### xDS RBAC Authorization Bypass via `Metadata` \u0026 `RequestedServerName` matchers\n\n- Affected Component: xDS RBAC \n- Impact: When building policy matchers for gRPC RBAC from xDS configurations, unsupported `permission` and `principal` rules (specifically `Metadata` and `RequestedServerName`) were silently ignored and treated as no-ops.\n  - If an authorization policy relied purely on these matchers for access control, treating those rules as no-ops effectively removed the restrictions.\n- If these unsupported rules were nested inside logical `NOT` rules (`Permission_NotRule` / `Principal_NotId`) or multi-condition `OR/AND` rules, silently dropping them changed the boolean logic flow of the authorization engine.\n\nAs a result, policy evaluation decisions could fail open, allowing unauthorized clients to access protected gRPC services or resources.\n\n#### HTTP/2 Rapid Reset Mitigation Bypass / Denial of Service via Stream Aborts\n\n- Affected Component: HTTP/2 transport\n- Impact: Earlier mitigations in grpc-go for HTTP/2 Rapid Reset only applied threshold checks to items that directly resulted in control frames being written back to the wire, such as `SETTINGS` ACKs or server-initiated `RST_STREAM`s.\n\nWhen a client initiated a rapid flood of stream creation (`HEADERS`) immediately followed by stream termination `RST_STREAM`, items queued up in the control buffer without counting against the transport response frame threshold. An attacker can repeatedly trigger this flood sequence to bypass reader blocking, resulting in high CPU usage, and Denial of Service (DoS).\n\n#### Denial of Service (Panic) in xDS RBAC Engine via Unsupported Fields inside NOT Rules\n\n- Affected Component: xDS RBAC \n- Impact: The xDS RBAC policy translators recursively generate matchers for nested rules. When a `NOT` rule wrapped an unsupported or unhandled field (such as `SourcedMetadata`), the recursive step returned an empty matcher. This could result in a runtime panic when the RBAC engine attempts to authorize an incoming request.\n\nAn attacker or misconfigured/malicious xDS management server delivering an LDS/RDS update containing a `NOT` rule around an unhandled field causes the gRPC server process to crash immediately (CWE-248 / Denial of Service).\n\n### Patches\n_Has the problem been patched? What versions should users upgrade to?_\n\nAll three issues have been fixed in `master` and will be released in 1.82.1 shortly.\n\n### Workarounds\n_Is there a way for users to fix or remediate the vulnerability without upgrading?_\n\nIf upgrading grpc-go immediately is not possible, apply the following workarounds based on your deployment architecture:\n\n* For xDS RBAC Vulnerabilities \u0026 Panics: Ensure that upstream xDS management servers do not push RBAC policies containing `Metadata`, `RequestedServerName`, or `NOT` rules wrapping unsupported fields (such as `SourcedMetadata`) to grpc-go servers.\n* For HTTP/2 Rapid Reset DOS: Configure upstream reverse proxies or load balancers (such as Envoy) with strict HTTP/2 `max_concurrent_streams` limits and active rate limiting on `RST_STREAM` frequency per connection.\n\n### Severity\n\n  | Vulnerability | Qualitative Severity | Approximate CVSS v3.1 Score | Primary Impact |\n  | :--- | :--- | :--- | :--- |\n  | **xDS RBAC Authorization Bypass** | **High** | `8.2` | Unauthorized Access / Fail-Open |\n  | **HTTP/2 Rapid Reset DOS Bypass** | **High** | `7.5` | High CPU Consumption / Denial of Service |\n  | **xDS RBAC Engine Server Panic** | **Medium** | `5.9` | Process Crash / Denial of Service |",
  "id": "GHSA-hrxh-6v49-42gf",
  "modified": "2026-07-21T22:03:56Z",
  "published": "2026-07-21T22:03:55Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/grpc/grpc-go/security/advisories/GHSA-hrxh-6v49-42gf"
    },
    {
      "type": "WEB",
      "url": "https://github.com/grpc/grpc-go/pull/9236"
    },
    {
      "type": "WEB",
      "url": "https://github.com/grpc/grpc-go/commit/4ea465d4ab98013f72a142fe0fc89c19770b2935"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/grpc/grpc-go"
    },
    {
      "type": "WEB",
      "url": "https://github.com/grpc/grpc-go/releases/tag/v1.82.1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "gRPC-Go: xDS RBAC and HTTP/2 Vulnerabilities"
}

Mitigation
Architecture and Design
  • Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) [REF-229] to enforce the roles at the appropriate boundaries.
  • Note that this approach may not protect against horizontal authorization, i.e., it will not protect a user from attacking others with the same role.
Mitigation
Architecture and Design

Ensure that access control checks are performed related to the business logic. These checks may be different than the access control checks that are applied to more generic resources such as files, connections, processes, memory, and database records. For example, a database may restrict access for medical records to a specific database user, but each record might only be intended to be accessible to the patient and the patient's doctor [REF-7].

Mitigation MIT-4.4
Architecture and Design

Strategy: Libraries or Frameworks

  • Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
  • For example, consider using authorization frameworks such as the JAAS Authorization Framework [REF-233] and the OWASP ESAPI Access Control feature [REF-45].
Mitigation
Architecture and Design
  • For web applications, make sure that the access control mechanism is enforced correctly at the server side on every page. Users should not be able to access any unauthorized functionality or information by simply requesting direct access to that page.
  • One way to do this is to ensure that all pages containing sensitive information are not cached, and that all such pages restrict access to requests that are accompanied by an active and authenticated session token associated with a user who has the required permissions to access that page.
Mitigation
System Configuration Installation

Use the access control capabilities of your operating system and server environment and define your access control lists accordingly. Use a "default deny" policy when defining these ACLs.

No CAPEC attack patterns related to this CWE.