CVE-2026-22184

{"id": "CVE-2026-22184", "cveTags": [{"tags": ["disputed"], "sourceIdentifier": "disclosure@vulncheck.com"}], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-22184", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-01-07T21:17:54.918396Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}], "cvssMetricV40": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 4.6, "Automatable": "NOT_DEFINED", "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "ACTIVE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "disclosure@vulncheck.com", "affectedData": [{"repo": "https://github.com/madler/zlib", "vendor": "zlib software", "product": "zlib", "versions": [{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "1.3.1.2"}], "defaultStatus": "unaffected"}]}], "published": "2026-01-07T21:16:01.563", "references": [{"url": "https://github.com/madler/zlib", "tags": ["Product"], "source": "disclosure@vulncheck.com"}, {"url": "https://seclists.org/fulldisclosure/2026/Jan/3", "tags": ["Mailing List", "Third Party Advisory"], "source": "disclosure@vulncheck.com"}, {"url": "https://www.vulncheck.com/advisories/zlib-untgz-global-buffer-overflow-in-tgzfname", "tags": ["Third Party Advisory"], "source": "disclosure@vulncheck.com"}, {"url": "https://zlib.net/", "tags": ["Product"], "source": "disclosure@vulncheck.com"}, {"url": "https://github.com/madler/zlib/issues/1142", "tags": ["Issue Tracking"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "description": [{"lang": "en", "value": "CWE-787"}]}, {"type": "Secondary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "zlib versions up to and including 1.3.1.2 include a global buffer overflow in the untgz utility located under contrib/untgz. The vulnerability is limited to the standalone demonstration utility and does not affect the core zlib compression library. The flaw occurs when a user executes the untgz command with an excessively long archive name supplied via the command line, leading to an out-of-bounds write in a fixed-size global buffer."}, {"lang": "es", "value": "Las versiones de zlib hasta la 1.3.1.2 inclusive incluyen un desbordamiento de b\u00fafer global en la utilidad untgz ubicada en contrib/untgz. La vulnerabilidad se limita a la utilidad de demostraci\u00f3n independiente y no afecta a la biblioteca de compresi\u00f3n central de zlib. El fallo ocurre cuando un usuario ejecuta el comando untgz con un nombre de archivo excesivamente largo suministrado a trav\u00e9s de la l\u00ednea de comandos, lo que lleva a una escritura fuera de l\u00edmites en un b\u00fafer global de tama\u00f1o fijo."}], "lastModified": "2026-06-17T10:19:30.120", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:zlib:zlib:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5B9F9582-7F4A-4376-BE97-6AB4038AEBB4", "versionEndIncluding": "1.3.1.2"}], "operator": "OR"}]}], "sourceIdentifier": "disclosure@vulncheck.com"}