PT-2026-110929 · Ayuhito · Modern-Tar

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CVE-2026-109380

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Published

2026-10-12

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Updated

2026-10-12

CVSS v3.1

7.5

High

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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(). Attackers can supply a crafted, optionally gzip-compressed, archive to unpackTar() that buffers chunks indefinitely, exhausting process memory and suppressing later entries.

Fix

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Weakness Enumeration

Related Identifiers

CVE-2026-109380

Affected Products

Modern-Tar