CVE-2026-59939

High

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.

SeverityHigh
CVSS7.5
Exploit probability—
ProductHttplib2
PublishedJul 8, 2026
First seenJul 8, 2026
Weakness typeCWE-409CWE-409

How to fix

Update
  • httplib2_project httplib20.32.0 or later
  • httplib20.32.0 or later

Affected products

ProductAffected versionsFixed in
httplib2_project httplib2v < 0.32.00.32.0
httplib2PyPIv < 0.32.00.32.0

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