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Vulnerabilities CVE-2026-59939

CVE-2026-59939

High
Open
TLP:CLEAR

httplib2: Decompression Bomb Denial of Service via Unbounded gzip/deflate Response Handling

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Description

httplib2 is a comprehensive HTTP client library for Python. Prior to 0.32.0, httplib2 performs unbounded decompression of HTTP response bodies encoded with Content-Encoding: gzip or deflate in _decompressContent in httplib2/init.py, allowing a malicious or compromised HTTP server to return a small compressed payload that expands to an arbitrarily large size in memory and causes MemoryError or OOM-kill in the client process. This issue is fixed in version 0.32.0.

Details

CVSS Score
7.5
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Confidence
90%
Published
Jul 8, 2026
Last Modified
Aug 20, 2026
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