CVE-2026-109380 modern-tar 0.3.5 through 0.8.5 Memory Exhaustion via Malformed Octal Size Field

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...