PT-2026-56548 · Httplib2 · Httplib2

Published 2026-07-08 · Updated 2026-07-08 · CVE-2026-59939

Mitre

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Fix

Weakness Enumeration

CWE-409

Related Identifiers

CVE-2026-59939

Affected Products

Httplib2

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-59939 · Security Note
• https://github.com/httplib2/httplib2/security/advisories/GHSA-j5g9-f88f-gfj3 · Note
• https://github.com/httplib2/httplib2/commit/87581ad6cf752fe3da2090c59058261d2d00a427 · Note
• https://github.com/httplib2/httplib2/releases/tag/v0.32.0 · Note