{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-50568",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-06-04T21:34:34.427Z",
        "datePublished": "2026-06-10T17:31:49.917Z",
        "dateUpdated": "2026-06-11T13:59:45.267Z"
    },
    "containers": {
        "cna": {
            "title": "Fission: SanitizeFilePath lexical HasPrefix bypass permits sibling-directory escape",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-41",
                            "lang": "en",
                            "description": "CWE-41: Improper Resolution of Path Equivalence",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "LOCAL",
                        "availabilityImpact": "NONE",
                        "baseScore": 3.6,
                        "baseSeverity": "LOW",
                        "confidentialityImpact": "LOW",
                        "integrityImpact": "LOW",
                        "privilegesRequired": "LOW",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/fission/fission/security/advisories/GHSA-r5jh-q2mw-gcx4",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/fission/fission/security/advisories/GHSA-r5jh-q2mw-gcx4"
                },
                {
                    "name": "https://github.com/fission/fission/pull/3445",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/fission/fission/pull/3445"
                },
                {
                    "name": "https://github.com/fission/fission/pull/3446",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/fission/fission/pull/3446"
                },
                {
                    "name": "https://github.com/fission/fission/releases/tag/v1.25.0",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/fission/fission/releases/tag/v1.25.0"
                }
            ],
            "affected": [
                {
                    "vendor": "fission",
                    "product": "fission",
                    "versions": [
                        {
                            "version": "< 1.25.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-06-10T17:31:49.917Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.25.0, SanitizeFilePath in pkg/utils/utils.go validated that a path stayed under a safe directory by calling strings.HasPrefix(path, safedir). This is a lexical check, not a directory boundary check: /packages-extra/evil starts with /packages, so it passed. The function did not enforce a path-separator boundary, so any sibling directory whose name began with the safe-directory string was accepted. Callers included the builder's Clean handler (pkg/builder/builder.go:208) and the fetcher's Fetch / Upload handlers (pkg/fetcher/fetcher.go). A tenant who could pre-create or control a sibling directory under the fetcher / builder's shared volume could induce a write or read outside the intended safe directory. This issue has been patched in version 1.25.0."
                }
            ],
            "source": {
                "advisory": "GHSA-r5jh-q2mw-gcx4",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-06-11T13:59:24.283843Z",
                                "id": "CVE-2026-50568",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-06-11T13:59:45.267Z"
                }
            }
        ]
    }
}