{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-46354",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-05-13T18:37:30.991Z",
        "datePublished": "2026-07-07T21:10:01.899Z",
        "dateUpdated": "2026-07-08T13:01:25.192Z"
    },
    "containers": {
        "cna": {
            "title": "Coder: PKCS#7 signature bypass in Azure instance identity allows unauthenticated agent token theft",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-347",
                            "lang": "en",
                            "description": "CWE-347: Improper Verification of Cryptographic Signature",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 9.1,
                        "baseSeverity": "CRITICAL",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/coder/coder/security/advisories/GHSA-6x44-w3xg-hqqf",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/coder/coder/security/advisories/GHSA-6x44-w3xg-hqqf"
                },
                {
                    "name": "https://github.com/coder/coder/pull/25286",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/coder/coder/pull/25286"
                },
                {
                    "name": "https://github.com/coder/coder/releases/tag/v2.24.5",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/coder/coder/releases/tag/v2.24.5"
                },
                {
                    "name": "https://github.com/coder/coder/releases/tag/v2.29.13",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/coder/coder/releases/tag/v2.29.13"
                },
                {
                    "name": "https://github.com/coder/coder/releases/tag/v2.30.8",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/coder/coder/releases/tag/v2.30.8"
                },
                {
                    "name": "https://github.com/coder/coder/releases/tag/v2.31.12",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/coder/coder/releases/tag/v2.31.12"
                },
                {
                    "name": "https://github.com/coder/coder/releases/tag/v2.32.2",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/coder/coder/releases/tag/v2.32.2"
                },
                {
                    "name": "https://github.com/coder/coder/releases/tag/v2.33.3",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/coder/coder/releases/tag/v2.33.3"
                }
            ],
            "affected": [
                {
                    "vendor": "coder",
                    "product": "coder",
                    "versions": [
                        {
                            "version": ">= 2.33.0-rc.0, < 2.33.3",
                            "status": "affected"
                        },
                        {
                            "version": ">= 2.32.0-rc.0, < 2.32.2",
                            "status": "affected"
                        },
                        {
                            "version": ">= 2.31.0, < 2.31.12",
                            "status": "affected"
                        },
                        {
                            "version": ">= 2.30.0, < 2.30.8",
                            "status": "affected"
                        },
                        {
                            "version": ">= 2.29.0, < 2.29.13",
                            "status": "affected"
                        },
                        {
                            "version": "< 2.24.5",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-07-07T21:10:01.899Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Coder allows organizations to provision remote development environments via Terraform. In versions prior tp 2.24.5, 2.29.13, 2.30.8, 2.31.12, 2.32.2, and 2.33.3, `azureidentity.Validate()` verifies that the PKCS#7 signer certificate chains to a trusted Azure CA but never verifies the PKCS#7 signature itself. An attacker can embed a legitimate Azure certificate alongside arbitrary content e.g. `{\"vmId\":\"<target>\"}` and the forged `vmId` will be accepted returning the victim workspace agent's session token. No authentication is required. The attacker only needs to know a target VM's `vmId` which is a `UUIDv4`. That's a practical limitation which would typically require prior access to be exploited. Versions 2.24.5, 2.29.13, 2.30.8, 2.31.12, 2.32.2, and 2.33.3 patch the issue. As a workaround, reconfigure any Azure templates to use token authentication rather than `azure-instance-identity`."
                }
            ],
            "source": {
                "advisory": "GHSA-6x44-w3xg-hqqf",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-07-08T13:01:18.394796Z",
                                "id": "CVE-2026-46354",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-07-08T13:01:25.192Z"
                }
            }
        ]
    }
}