{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-73539",
        "assignerOrgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
        "state": "PUBLISHED",
        "assignerShortName": "Gitea",
        "dateReserved": "2026-08-13T16:50:59.746Z",
        "datePublished": "2026-10-14T14:37:44.243Z",
        "dateUpdated": "2026-10-18T13:32:51.154Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2",
                "shortName": "Gitea",
                "dateUpdated": "2026-10-14T14:37:44.243Z"
            },
            "title": "Gitea external renderer argument injection and code execution",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Gitea substitutes a URL derived from the markup Context field into external renderer command templates without escaping the reference path before shell-style argument splitting. A crafted Context can inject additional renderer arguments, including options that load executable filter files. On deployments using a susceptible external renderer such as pandoc, a user who can place a filter file at an accessible path can cause it to execute as the Gitea service account; the public repository markup endpoint itself can be reachable without authentication."
                }
            ],
            "affected": [
                {
                    "vendor": "Gitea",
                    "product": "Gitea",
                    "packageName": "gitea",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "lessThanOrEqual": "1.27.1",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-579w-82gf-89m2",
                    "name": "GitHub Security Advisory GHSA-579w-82gf-89m2",
                    "tags": [
                        "vendor-advisory"
                    ]
                },
                {
                    "url": "https://blog.gitea.com/release-of-1.27.2/",
                    "name": "Gitea 1.27.2 release announcement",
                    "tags": [
                        "release-notes"
                    ]
                },
                {
                    "url": "https://github.com/go-gitea/gitea/pull/38885",
                    "name": "Fix: go-gitea/gitea pull request #38885",
                    "tags": [
                        "patch"
                    ]
                },
                {
                    "url": "https://github.com/go-gitea/gitea/pull/38898",
                    "name": "Fix: go-gitea/gitea pull request #38898",
                    "tags": [
                        "patch"
                    ]
                },
                {
                    "url": "https://github.com/go-gitea/gitea/releases/tag/v1.27.2",
                    "name": "go-gitea/gitea v1.27.2 release",
                    "tags": [
                        "release-notes"
                    ]
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "type": "CWE",
                            "cweId": "CWE-88",
                            "description": "CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')"
                        }
                    ]
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "https://github.com/DshtAnger",
                    "type": "reporter"
                }
            ]
        },
        "adp": [
            {
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 7.5,
                            "attackVector": "NETWORK",
                            "baseSeverity": "HIGH",
                            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                            "integrityImpact": "HIGH",
                            "userInteraction": "NONE",
                            "attackComplexity": "HIGH",
                            "availabilityImpact": "HIGH",
                            "privilegesRequired": "LOW",
                            "confidentialityImpact": "HIGH"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-18T13:32:47.376516Z",
                                "id": "CVE-2026-73539",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "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": "2026-10-18T13:32:51.154Z"
                }
            }
        ]
    }
}