--- id: CVE-2026-59939 title: httplib2 is a comprehensive HTTP client library for Python summary: >- 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, allo… severity: high cvss: 7.5 cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H' cwe: - CWE-409 vendor: httplib2_project product: httplib2 affected: - httplib2 < 0.32.0 patched: - httplib2 0.32.0 published: '2026-07-08' updated: '2026-07-13' source: NVD sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-59939' references: - url: >- https://github.com/httplib2/httplib2/commit/87581ad6cf752fe3da2090c59058261d2d00a427 label: security-advisories@github.com - url: 'https://github.com/httplib2/httplib2/releases/tag/v0.32.0' label: security-advisories@github.com - url: >- https://github.com/httplib2/httplib2/security/advisories/GHSA-j5g9-f88f-gfj3 label: security-advisories@github.com - url: >- https://github.com/httplib2/httplib2/security/advisories/GHSA-j5g9-f88f-gfj3 label: 134c704f-9b21-4f2e-91b3-4a467353bcc0 - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-59939' - url: 'https://github.com/httplib2/httplib2' - url: >- https://github.com/pypa/advisory-database/tree/main/vulns/httplib2/PYSEC-2026-3444.yaml - url: 'https://lists.debian.org/debian-lts-announce/2026/08/msg00039.html' - url: >- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-59939.json - url: 'https://access.redhat.com/security/cve/CVE-2026-59939' - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2498212' - url: 'https://www.cve.org/CVERecord?id=CVE-2026-59939' - url: 'https://access.redhat.com/errata/RHSA-2026:49911' - url: 'https://access.redhat.com/errata/RHSA-2026:48585' - url: 'https://access.redhat.com/errata/RHSA-2026:47736' - url: 'https://access.redhat.com/errata/RHSA-2026:48615' - url: 'https://access.redhat.com/errata/RHSA-2026:48604' - url: 'https://access.redhat.com/errata/RHSA-2026:48605' - url: 'https://access.redhat.com/errata/RHSA-2026:50653' - url: 'https://access.redhat.com/errata/RHSA-2026:50655' - url: 'https://access.redhat.com/errata/RHSA-2026:50654' - url: 'https://access.redhat.com/errata/RHSA-2026:50317' - url: 'https://access.redhat.com/errata/RHSA-2026:50357' - url: 'https://access.redhat.com/errata/RHSA-2026:50479' - url: 'https://access.redhat.com/errata/RHSA-2026:50340' - url: 'https://access.redhat.com/errata/RHSA-2026:43038' - url: 'https://access.redhat.com/errata/RHSA-2026:84734' tags: - nvd - osv - pip - csaf - vex - red-hat epss: 0.00665 epssPercentile: 0.51589 ingestedAt: '2026-07-13T13:27:18.209Z' aliases: - GHSA-j5g9-f88f-gfj3 - PYSEC-2026-3444 ecosystem: pip --- ## Overview 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 - `httplib2 < 0.32.0` ## Remediation Upgrade past the affected range: - `httplib2 0.32.0` ## Package advisory (CVE-2026-59939) Affected packages: - `httplib2 < 0.32.0` Patched in: - `httplib2 0.32.0` Source: https://osv.dev/vulnerability/GHSA-j5g9-f88f-gfj3 ## Vendor advisories - **RHSA-2026:49911** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v. 10.0) · released 2026-08-04 · [advisory](https://access.redhat.com/errata/RHSA-2026:49911) - **RHSA-2026:48585** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10) · released 2026-07-31 · [advisory](https://access.redhat.com/errata/RHSA-2026:48585) - **RHSA-2026:47736** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux HighAvailability (v. 8), Red Hat Enterprise Linux ResilientStorage (v. 8) · released 2026-07-30 · [advisory](https://access.redhat.com/errata/RHSA-2026:47736) - **RHSA-2026:48615** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4), Red Hat Enterprise Linux High Availability AUS (v.8.4), Red Hat Enterprise Linux HighAvailability EUS EXTENSION (v.8.4) · released 2026-07-30 · [advisory](https://access.redhat.com/errata/RHSA-2026:48615) - **RHSA-2026:48604** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6), Red Hat Enterprise Linux High Availability EUS EXTENSION (v.8.6) · released 2026-07-30 · [advisory](https://access.redhat.com/errata/RHSA-2026:48604) - **RHSA-2026:48605** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8), Red Hat Enterprise Linux High Availability E4S (v.8.8), Red Hat Enterprise Linux High Availability TUS (v.8.8) · released 2026-07-30 · [advisory](https://access.redhat.com/errata/RHSA-2026:48605) - **RHSA-2026:50653** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.2), Red Hat Enterprise Linux High Availability E4S (v.9.2), Red Hat Enterprise Linux Resilient Storage E4S (v.9.2) · released 2026-08-05 · [advisory](https://access.redhat.com/errata/RHSA-2026:50653) - **RHSA-2026:50655** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.4), Red Hat Enterprise Linux High Availability E4S (v.9.4), Red Hat Enterprise Linux Resilient Storage E4S (v.9.4) · released 2026-08-05 · [advisory](https://access.redhat.com/errata/RHSA-2026:50655) - **RHSA-2026:50654** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v.9.6) · released 2026-08-05 · [advisory](https://access.redhat.com/errata/RHSA-2026:50654) - **RHSA-2026:50317** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9) · released 2026-08-04 · [advisory](https://access.redhat.com/errata/RHSA-2026:50317) - **RHSA-2026:50357** · Red Hat · fixed in: Red Hat Ansible Automation Platform 2.5 · released 2026-08-04 · [advisory](https://access.redhat.com/errata/RHSA-2026:50357) - **Red Hat VEX** · Important · affected: Red Hat Ansible Automation Platform 2, Red Hat Enterprise Linux 7 · no fix planned: Red Hat Enterprise Linux 7, Red Hat Ansible Automation Platform 2 · updated 2026-10-19 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-59939.json)