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    "cveMetadata": {
        "cveId": "CVE-2026-108711",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-10-11T01:51:09.941Z",
        "datePublished": "2026-10-11T12:19:25.400Z",
        "dateUpdated": "2026-10-11T12:19:25.400Z"
    },
    "containers": {
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                "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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                "dateUpdated": "2026-10-11T12:19:25.400Z"
            },
            "datePublic": "2026-10-10T00:00:00.000Z",
            "title": "Plastic Labs Honcho through 3.3.0 Incorrect Authorization via POST /v3/workspaces",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Plastic Labs Honcho through 3.3.0 contains an incorrect authorization vulnerability that allows peer- or session-scoped API key holders to read workspace data because get_or_create_workspace checks only the workspace claim. Attackers can submit their parent workspace name to the POST /v3/workspaces endpoint to retrieve workspace metadata and configuration, including custom_instructions, reserved for workspace or admin keys."
                }
            ],
            "problemTypes": [
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                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "Incorrect Authorization",
                            "cweId": "CWE-863",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "Plastic Labs",
                    "product": "honcho",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "0",
                            "lessThanOrEqual": "3.3.0",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ],
                    "packageURL": "pkg:github/plastic-labs/honcho",
                    "repo": "https://github.com/plastic-labs/honcho"
                }
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                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "LOW",
                        "vulnIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 5.3,
                        "baseSeverity": "MEDIUM"
                    }
                },
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                        "attackVector": "NETWORK",
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                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
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                        "integrityImpact": "NONE",
                        "availabilityImpact": "NONE",
                        "baseScore": 4.3,
                        "baseSeverity": "MEDIUM"
                    }
                }
            ],
            "references": [
                {
                    "url": "https://hackmd.io/@haind/honcho-scoped-jwt-workspace-config-disclosure",
                    "tags": [
                        "third-party-advisory"
                    ]
                },
                {
                    "url": "https://github.com/plastic-labs/honcho/blob/608aec8a928da13c540262ed980c569448fb53ab/src/routers/workspaces.py#L41-L72",
                    "tags": [
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                    "tags": [
                        "technical-description"
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                },
                {
                    "url": "https://github.com/plastic-labs/honcho/blob/608aec8a928da13c540262ed980c569448fb53ab/src/crud/workspace.py#L112-L119",
                    "tags": [
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                },
                {
                    "url": "https://github.com/plastic-labs/honcho",
                    "tags": [
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                {
                    "name": "VulnCheck Advisory: Plastic Labs Honcho through 3.3.0 Incorrect Authorization via POST /v3/workspaces",
                    "tags": [
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                    ],
                    "url": "https://www.vulncheck.com/advisories/plastic-labs-honcho-through-3.3.0-incorrect-authorization-via-post-v3-workspaces"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "HaiND from the Post and Telecommunication Institute of Technology",
                    "type": "finder"
                }
            ],
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                "engine": "vulncheck-endgame"
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        }
    }
}