CVE-2026-109380

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{"bugzilla": {"description": "modern-tar: modern-tar: Denial of Service via memory exhaustion from crafted archives", "id": "2549954", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2549954"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-770", "details": ["A flaw was found in modern-tar. A remote attacker can trigger a Denial of Service (DoS) by supplying a specially crafted archive containing malformed entry size values. When processing the invalid data, the parser fails to properly calculate file sizes and buffers data indefinitely, leading to memory exhaustion and process termination."], "name": "CVE-2026-109380", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "rust", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "rust", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Not affected", "package_name": "rust", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-10-12T20:55:11Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-109380\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-109380\nhttps://github.com/ayuhito/modern-tar\nhttps://github.com/ayuhito/modern-tar/blob/v0.8.5/src/tar/encoding.ts\nhttps://github.com/ayuhito/modern-tar/commit/181c8cb75351867535057817ada4802a90fe416e\nhttps://github.com/ayuhito/modern-tar/pull/195\nhttps://www.vulncheck.com/advisories/modern-tar-0.3.5-through-0.8.5-memory-exhaustion-via-malformed-octal-size-field"], "threat_severity": "Important"}

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