CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2026-59939
High (7.5) in httplib2 project httplib2. EPSS 0.7% chance of exploitation in the next 30 days. Fixed in httplib2 0.32.0.
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.
Severity
- EPSS
- 0.7% chance of exploitation in the next 30 days; higher than 51% of CVEs (scores of 2026-10-31)
- CWE
- CWE-409
- Published
- Modified
- Record from
- the NVD, synced
Affected
- httplib2_project:httplib2
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-j5g9-f88f-gfj3 | PyPI | httplib2 | <0.32.0 | 0.32.0 |
| PYSEC-2026-3444 | PyPI | httplib2 | <0.32.0 | 0.32.0 |
References
- https://github.com/httplib2/httplib2/commit/87581ad6cf752fe3da2090c59058261d2d00a427
- https://github.com/httplib2/httplib2/releases/tag/v0.32.0
- https://github.com/httplib2/httplib2/security/advisories/GHSA-j5g9-f88f-gfj3
- https://lists.debian.org/debian-lts-announce/2026/08/msg00039.html
- https://github.com/httplib2/httplib2/security/advisories/GHSA-j5g9-f88f-gfj3