CVE-2026-59939

Published: Jul 8, 2026Modified: Jul 13, 2026

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: security-advisories@github.com (Secondary)

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.

Affected (1)

Products: Httplib2 Project: Httplib2

Httplib2 Project

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Httplib2 Project Httplib2	Before 0.32.0

Related CWEs

Improper Handling of Highly Compressed Data (Data Amplification)

The product does not handle or incorrectly handles a compressed input with a very high compression ratio that produces a large output.

References (4)

https://github.com/httplib2/httplib2/commit/87581ad6cf752fe3da2090c59058261d2d00a427

Source: security-advisories@github.com

Patch

https://github.com/httplib2/httplib2/releases/tag/v0.32.0

Source: security-advisories@github.com

Release Notes

https://github.com/httplib2/httplib2/security/advisories/GHSA-j5g9-f88f-gfj3

Source: security-advisories@github.com

ExploitVendor Advisory

https://github.com/httplib2/httplib2/security/advisories/GHSA-j5g9-f88f-gfj3

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

ExploitVendor Advisory

Timeline

No history available yet.