{"id":"CVE-2026-59939","aliases":["GHSA-j5g9-f88f-gfj3","PYSEC-2026-3444"],"url":"https://o3.security/vulnerability/CVE-2026-59939","summary":"httplib2: Decompression Bomb Denial of Service via Unbounded gzip/deflate Response Handling","details":"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.","published":"2026-07-08T19:34:05.150Z","modified":"2026-08-22T03:31:09.497783038Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"httplib2","fixedVersion":"0.32.0"}],"fix":{"url":"https://github.com/httplib2/httplib2/commit/87581ad6cf752fe3da2090c59058261d2d00a427","label":"httplib2/httplib2@87581ad"},"references":[{"type":"WEB","url":"https://github.com/httplib2/httplib2/releases/tag/v0.32.0"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2026/08/msg00039.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59939.json"},{"type":"ADVISORY","url":"https://github.com/httplib2/httplib2/security/advisories/GHSA-j5g9-f88f-gfj3"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59939"},{"type":"FIX","url":"https://github.com/httplib2/httplib2/commit/87581ad6cf752fe3da2090c59058261d2d00a427"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-22T03:31:09.497783038Z"}}