Improper handling of highly compressed data in httplib2 - #VU135769
Published: June 29, 2026
Vulnerability identifier: #VU135769
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: N/A
CWE-ID: CWE-409
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: httplib2
Affected software:
httplib2
httplib2
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper handling of highly compressed data in the _decompressContent() function when processing HTTP responses with Content-Encoding: gzip or deflate. A remote attacker can send a specially crafted compressed HTTP response to cause a denial of service.
The issue is triggered automatically during httplib2.Http().request() and requires no user interaction.
Remediation
Install security update from vendor's website.