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OpenAdvisories
High · 7.5 CVE-2026-59939 EUVD-2026-42364GHSA-j5g9-f88f-gfj3PYSEC-2026-3444

httplib2: Decompression Bomb Denial of Service via Unbounded gzip/deflate Response Handling

Published Jul 8, 2026 · Updated Aug 20, 2026 · Assigned by GitHub_M

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 products

VendorProductAffectedFixed
httplib2 httplib2 < 0.32.0 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 python-httplib2 0.32.0-1 —
Debian 13 python-httplib2 0.22.0-1+deb13u1 —
Debian 12 python-httplib2 0.20.4-3+deb12u1 —
ReleasePackageFixed inAdvisory
Ubuntu 26.04 LTS python-httplib2 0.22.0-1ubuntu0.1 USN-8537-1
Ubuntu 25.10 python-httplib2 No fix yet —
Ubuntu 24.04 LTS python-httplib2 0.20.4-3ubuntu0.1 USN-8537-1
Ubuntu 22.04 LTS python-httplib2 0.20.2-2ubuntu0.1 USN-8537-1
Ubuntu 20.04 LTS python-httplib2 No fix yet —
Show 3 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 18.04 LTS python-httplib2 No fix yet —
Ubuntu 16.04 LTS python-httplib2 No fix yet —
Ubuntu 14.04 LTS python-httplib2 No fix yet —
ReleasePackageFixed inAdvisory
RHEL 10 fence-virt +55 4.16.0-21.el10_2.5 RHSA-2026:48585
RHEL 9 fence-virt +56 4.10.0-110.el9_8.5 RHSA-2026:50317
RHEL 8 fence-agents +48 4.2.1-129.el8_10.27 RHSA-2026:47736
Show 10 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
RHEL 10.0 EUS fence-virt +55 4.16.0-5.el10_0.12 RHSA-2026:49911
RHEL 9.6 EUS fence-virt +56 4.10.0-86.el9_6.19 RHSA-2026:50654
RHEL 9.4 E4S fence-virt +56 4.10.0-62.el9_4.27 RHSA-2026:50655
RHEL 9.2 E4S fence-virt +56 4.10.0-43.el9_2.24 RHSA-2026:50653
RHEL 8.8 TUS fence-agents +46 4.2.1-112.el8_8.19 RHSA-2026:48605
RHEL 8.8 E4S fence-agents +47 4.2.1-112.el8_8.19 RHSA-2026:48605
RHEL 8.6 EUS Long Life fence-agents +46 4.2.1-89.el8_6.24 RHSA-2026:48604
RHEL 8.6 AUS fence-agents +42 4.2.1-89.el8_6.24 RHSA-2026:48604
RHEL 8.4 EUS Long Life fence-agents +42 4.2.1-65.el8_4.30 RHSA-2026:48615
RHEL 8.4 AUS fence-agents +46 4.2.1-65.el8_4.30 RHSA-2026:48615

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 10 fence-virt +54 4.16.0-21.el10_2.5 ALSA-2026:48585
AlmaLinux 9 fence-virt +55 4.10.0-110.el9_8.5 ALSA-2026:50317
AlmaLinux 8 fence-agents-all +47 4.2.1-129.el8_10.27 ALSA-2026:47736

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 10 fence-agents 4.16.0-21.el10_2.5 RLSA-2026:48585
Rocky Linux 9 fence-agents 4.10.0-110.el9_8.5 RLSA-2026:50317
Rocky Linux 8 fence-agents 4.2.1-129.el8_10.27 RLSA-2026:47736
ReleasePackageFixed inAdvisory
SLES 15 SP5 python-httplib2 0.22.0-150400.10.7.1 SUSE-SU-2026:3898-1
SLES 15 SP4 python-httplib2 0.22.0-150400.10.7.1 SUSE-SU-2026:3898-1
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 16.0 python-httplib2 0.22.0-160000.3.1 SUSE-SU-2026:23142-1, SUSE-SU-2026:23120-1
SLES 16.0 python-httplib2 0.22.0-160000.3.1 SUSE-SU-2026:23142-1, SUSE-SU-2026:23120-1
ReleasePackageFixed inAdvisory
openSUSE Leap 16.0 python-httplib2 0.22.0-160000.3.1 openSUSE-SU-2026:21526-1

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2 fence-agents-all +39 4.2.1-24.amzn2.0.4 ALAS2-2026-3988

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 3 python-httplib2 No fix yet —

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 10 fence-virt +52 4.16.0-21.el10_2.5 ELSA-2026-48585
Oracle Linux 8 fence-agents-all +41 4.2.1-129.el8_10.27 ELSA-2026-47736

Wolfi

ReleasePackageFixed inAdvisory
Wolfi rolling kubeflow-pipelines-visualization-server 2.17.0-r2 —

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI httplib2 < 0.32.0 0.32.0 GHSA-j5g9-f88f-gfj3

Advisories 25

References