{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-55453",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-06-16T22:10:37.607Z",
        "datePublished": "2026-10-15T17:11:21.208Z",
        "dateUpdated": "2026-10-16T17:12:58.110Z"
    },
    "containers": {
        "cna": {
            "title": "CUPS ipp backend status-line injection can update queue PPD and lead to conditional RCE as lp via foomatic-rip",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-74",
                            "lang": "en",
                            "description": "CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-77",
                            "lang": "en",
                            "description": "CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-78",
                            "lang": "en",
                            "description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "LOCAL",
                        "availabilityImpact": "LOW",
                        "baseScore": 3.3,
                        "baseSeverity": "LOW",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "REQUIRED",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/OpenPrinting/cups/security/advisories/GHSA-7hqf-mfhx-7r3v",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/OpenPrinting/cups/security/advisories/GHSA-7hqf-mfhx-7r3v"
                },
                {
                    "name": "https://github.com/OpenPrinting/cups/commit/806e1b483096c51d59432468f4afdd7387d81dd7",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/OpenPrinting/cups/commit/806e1b483096c51d59432468f4afdd7387d81dd7"
                },
                {
                    "name": "https://github.com/OpenPrinting/cups/commit/d41cf0616688721e9d435d54118c4c8a36ed596a",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/OpenPrinting/cups/commit/d41cf0616688721e9d435d54118c4c8a36ed596a"
                },
                {
                    "name": "https://github.com/OpenPrinting/cups/releases/tag/v2.4.20",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/OpenPrinting/cups/releases/tag/v2.4.20"
                }
            ],
            "affected": [
                {
                    "vendor": "OpenPrinting",
                    "product": "cups",
                    "versions": [
                        {
                            "version": "< 2.4.20",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-15T17:11:21.208Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to 2.4.20, the backend/ipp.c quote_string() function preserves carriage-return and line-feed characters in a remote printer-controlled marker-message before report_attr() writes the value to the scheduler status stream. The scheduler can parse an injected newline as a separate PPD: control line and persist an attacker-selected PPD keyword. The reporter demonstrated that a later print job on a Foomatic-backed queue could consume an injected FoomaticRIPCommandLine value and execute in the filter context as lp. This issue is fixed in version 2.4.20."
                }
            ],
            "source": {
                "advisory": "GHSA-7hqf-mfhx-7r3v",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-15T20:24:45.854455Z",
                                "id": "CVE-2026-55453",
                                "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": "2026-10-16T17:12:58.110Z"
                }
            }
        ]
    }
}