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•added 2026/07/07 4:03 p.m.•18 views

PYSEC-2026-1294 Unfurl's unbounded zlib decompression allows decompression bomb DoS

Summary The compressed data parser uses zlib.decompress without a maximum output size. A small, highly compressed payload can expand to a very large output, causing memory exhaustion and denial of service. Details - unfurl/parsers/parsecompressed.py calls zlib.decompressdecoded with no size limit...

8.7CVSS6AI score0.0079EPSS
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