{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-116870",
        "assignerOrgId": "6f4f8c89-ef06-4bae-a2a5-6734ddf76272",
        "state": "PUBLISHED",
        "assignerShortName": "Octopus",
        "dateReserved": "2026-10-27T00:58:00.462Z",
        "datePublished": "2026-10-27T10:28:11.007Z",
        "dateUpdated": "2026-10-27T10:28:11.007Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "6f4f8c89-ef06-4bae-a2a5-6734ddf76272",
                "shortName": "Octopus",
                "dateUpdated": "2026-10-27T10:28:11.007Z"
            },
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-1289",
                            "description": "CWE-1289: Improper Validation of Unsafe Equivalence in Input",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "Octopus Deploy",
                    "product": "Octopus Server",
                    "platforms": [
                        "Windows",
                        "Linux"
                    ],
                    "versions": [
                        {
                            "status": "affected",
                            "version": "2024.1.0",
                            "lessThan": "2026.1.11781",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "2026.2.0",
                            "lessThan": "2026.2.13438",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "2026.3.0",
                            "lessThan": "2026.3.15816",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In affected versions of Octopus Server, OIDC token issuer validation was performed inconsistently. This could result in a token issued from a suitably configured non legitimate issuer being accepted as a token belonging to a service account from a legitimate trusted issuer. Exploitation requires a service account with at least one OIDC identity configured. An attacker would also need to know or guess some details of that identity in order to be in a position to attempt exploitation.",
                    "supportingMedia": [
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                            "value": "In affected versions of Octopus Server, OIDC token issuer validation was performed inconsistently. This could result in a token issued from a suitably configured non legitimate issuer being accepted as a token belonging to a service account from a legitimate trusted issuer. Exploitation requires a service account with at least one OIDC identity configured. An attacker would also need to know or guess some details of that identity in order to be in a position to attempt exploitation."
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://advisories.octopus.com/post/2026/sa2026-15"
                }
            ],
            "metrics": [
                {
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ],
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "HIGH",
                        "subIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "HIGH",
                        "subAvailabilityImpact": "NONE",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
                        "providerUrgency": "NOT_DEFINED",
                        "version": "4.0",
                        "baseSeverity": "HIGH",
                        "baseScore": 8.7,
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
                    }
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "This vulnerability was found by Nathan Willoughby",
                    "type": "finder"
                }
            ],
            "source": {
                "discovery": "INTERNAL"
            },
            "x_generator": {
                "engine": "Vulnogram 1.0.5"
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    }
}