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Weakness (CWE) CWE-1284 Improper Validation of Specified Quantity in Input 1

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TI-2026-71283 CVE-2026-109380 · GHSA-m6wr-6wgx-82mm

Memory exhaustion in modern-tar via malformed octal size field

Priority MEDIUM 44

modern-tar 0.3.5 through 0.8.5 contains a memory exhaustion vulnerability that allows attackers to produce negative entry sizes via non-octal bytes parsed by readOctal().

CVSS 4.0HIGH 8.7· Network · No auth · No interaction · EPSS 0.00446 · Published 2026-10-12 · No fix listed CWE-1284

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