AUGUST 24, 2026
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Case File

CVE-2026-59939

HIGH · CVSS 7.5 EPSS 0.41% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-08 · Last synced 2026-08-07

CyberRota Analysis

AI-Generated

The httplib2 library for Python is vulnerable to unbounded decompression of HTTP response bodies encoded with gzip or deflate, which can lead to MemoryError or an out-of-memory (OOM) condition in the client process. This vulnerability allows attackers to exploit the library by sending a small compressed payload that expands significantly in memory. Developers and organizations using versions prior to 0.32.0 should prioritize upgrading to mitigate potential denial-of-service risks.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

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CVE
CVE-2026-59939
Severity
HIGH
CVSS
7.5
EPSS
0.41%

Original NVD 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.

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