{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-75594",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-08-17T23:49:03.449Z",
        "datePublished": "2026-08-31T20:53:00.338Z",
        "dateUpdated": "2026-09-01T14:31:42.348Z"
    },
    "containers": {
        "cna": {
            "title": "Kirby: Access to image files and limited access to JSON files outside of the site root via path traversal in the media handling",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-22",
                            "lang": "en",
                            "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 8.2,
                        "baseSeverity": "HIGH",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/getkirby/kirby/security/advisories/GHSA-9vx2-j98c-p72w",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/getkirby/kirby/security/advisories/GHSA-9vx2-j98c-p72w"
                },
                {
                    "name": "https://github.com/getkirby/kirby/commit/22fbaedb7e6dd61f5def10829ba7bd7e73e0dcc9",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/getkirby/kirby/commit/22fbaedb7e6dd61f5def10829ba7bd7e73e0dcc9"
                },
                {
                    "name": "https://github.com/getkirby/kirby/commit/a40808f5c2ee5d42bb597fb6ffbe0de0ce8e4d20",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/getkirby/kirby/commit/a40808f5c2ee5d42bb597fb6ffbe0de0ce8e4d20"
                },
                {
                    "name": "https://github.com/getkirby/kirby/commit/cd7abb68d298f3443eafd43fa2d0c7ad0f933d0e",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/getkirby/kirby/commit/cd7abb68d298f3443eafd43fa2d0c7ad0f933d0e"
                },
                {
                    "name": "https://github.com/getkirby/kirby/commit/e0dca5f709adc21b36f5549df2c0619bc59da56c",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/getkirby/kirby/commit/e0dca5f709adc21b36f5549df2c0619bc59da56c"
                },
                {
                    "name": "https://github.com/getkirby/kirby/releases/tag/4.9.5",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/getkirby/kirby/releases/tag/4.9.5"
                },
                {
                    "name": "https://github.com/getkirby/kirby/releases/tag/5.5.2",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/getkirby/kirby/releases/tag/5.5.2"
                }
            ],
            "affected": [
                {
                    "vendor": "getkirby",
                    "product": "kirby",
                    "versions": [
                        {
                            "version": "< 4.9.5",
                            "status": "affected"
                        },
                        {
                            "version": ">= 5.0.0, < 5.5.2",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-08-31T20:53:00.338Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Kirby is an open-source content management system. Prior to 4.9.5 and 5.5.2, depending on the release line, Kirby's media handler in src/Cms/Media.php allowed Kirby\\Cms\\Media::thumb() to append a path-bearing filename to a validated parent media directory. On nginx, PHP's built-in server, or Apache with AllowEncodedSlashes enabled, a remote attacker could submit encoded slash characters such as %2f in the filename and traverse outside the parent's media directory. Differences between responses for existing and nonexistent thumbnail configurations disclosed whether an arbitrary .json file existed, and a .json file containing a valid filename key could cause the referenced image to be returned and the job file to be deleted. The related file::version path in src/Filesystem/Asset.php also accepted ../ sequences outside the intended index root. This issue is fixed in versions 4.9.5 and 5.5.2."
                }
            ],
            "source": {
                "advisory": "GHSA-9vx2-j98c-p72w",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-09-01T14:31:20.412958Z",
                                "id": "CVE-2026-75594",
                                "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": "2026-09-01T14:31:42.348Z"
                }
            }
        ]
    }
}