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			"namespace":"https://nvd.nist.gov/vuln-metrics/cvss",
			"text":"MEDIUM"
		},
		"category":"csaf_vex",
		"csaf_version":"2.0",
		"distribution":{
			"tlp":{
				"label":"WHITE",
				"url":"https:/www.first.org/tlp/"
			}
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		"lang":"en",
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			{
				"text":"OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, a local unprivileged user can coerce cupsd into authenticating to an attacker-controlled localhost IPP service with a reusable Authorization: Local ... token. That token is enough to drive /admin/ requests on localhost, and the attacker can combine CUPS-Create-Local-Printer with printer-is-shared=true to persist a file:///... queue even though the normal FileDevice policy rejects such URIs. Printing to that queue gives an arbitrary root file overwrite; the PoC below uses that primitive to drop a sudoers fragment and demonstrate root command execution. At time of publication, there are no publicly available patches.",
				"category":"general",
				"title":"Synopsis"
			}
		],
		"publisher":null,
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				"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34990"
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				"url":"https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-34990&packageName=cups"
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	"vulnerabilities":[
		{
			"cve":"CVE-2026-34990",
			"notes":[
				{
					"text":"OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, a local unprivileged user can coerce cupsd into authenticating to an attacker-controlled localhost IPP service with a reusable Authorization: Local ... token. That token is enough to drive /admin/ requests on localhost, and the attacker can combine CUPS-Create-Local-Printer with printer-is-shared=true to persist a file:///... queue even though the normal FileDevice policy rejects such URIs. Printing to that queue gives an arbitrary root file overwrite; the PoC below uses that primitive to drop a sudoers fragment and demonstrate root command execution. At time of publication, there are no publicly available patches.",
					"category":"description",
					"title":"Vulnerability Description"
				}
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				}
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					"details":"cups security update",
					"category":"vendor_fix",
					"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1933"
				}
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			"scores":[
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					"cvss_v3":{
						"baseSeverity":"MEDIUM",
						"baseScore":5.0,
						"vectorString":"CVSS:3.1/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:L",
						"version":"3.1"
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					"details":"Medium",
					"category":"impact"
				}
			],
			"title":"CVE-2026-34990"
		}
	]
}