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Ubuntu 26.04 LTS Python httplib2 Important Denial of Service Vuln 8537-1

ubuntu
Calendar Grey July 14, 2026
Dist Ubuntu Esm H88
A flaw in httplib2 could allow denial of service via crafted network traffic, affecting multiple Ubuntu LTS versions.
httplib2 could be made to crash if it received specially crafted network traffic.

Summary

httplib2 could be made to crash if it received specially crafted network

traffic.

Software Description:

- python-httplib2: comprehensive HTTP client library written for Python3

Details:

It was discovered that httplib2 performed unbounded decompression of HTTP

response bodies when the server used gzip or deflate Content-Encoding. A

remote attacker could possibly use this issue to cause httplib2 to use

excessive resources, leading to a denial of service.

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu important network traffic httplib2

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 26.04 LTS
  python3-httplib2                0.22.0-1ubuntu0.1

Ubuntu 24.04 LTS
  python3-httplib2                0.20.4-3ubuntu0.1

Ubuntu 22.04 LTS
  python3-httplib2                0.20.2-2ubuntu0.1

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-8537-1

CVE-2026-59939

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8537-1

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu important network traffic httplib2

Package Information

https://launchpad.net/ubuntu/+source/python-httplib2/0.22.0-1ubuntu0.1
https://launchpad.net/ubuntu/+source/python-httplib2/0.20.4-3ubuntu0.1
https://launchpad.net/ubuntu/+source/python-httplib2/0.20.2-2ubuntu0.1

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