{"id":"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.","aliases":["GHSA-j5g9-f88f-gfj3","PYSEC-2026-3444"],"modified":"2026-08-05T18:35:11.168283631Z","published":"2026-07-08T19:34:05.150Z","related":["ALSA-2026:47736","ALSA-2026:48585","CGA-w6g9-mw6r-6r4c","openSUSE-SU-2026:21526-1"],"database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-409"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59939.json"},"references":[{"type":"WEB","url":"https://github.com/httplib2/httplib2/releases/tag/v0.32.0"},{"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/httplib2/httplib2","events":[{"introduced":"0"},{"fixed":"ba9bf505cd899f522f2bb58ca608444adf49afc1"},{"fixed":"87581ad6cf752fe3da2090c59058261d2d00a427"}],"database_specific":{"source":["CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:httplib2_project:httplib2:*:*:*:*:*:python:*:*","extracted_events":[{"introduced":"0"},{"fixed":"0.32.0"}]}}],"versions":["v0.31.2","v0.31.1","v0.31.0","v0.30.2","v0.30.1","v0.30.0","v0.22.0","v0.21.0","v0.20.4","v0.20.3","v0.20.2","v0.20.1","v0.20.0","v0.19.1","v0.19.0","v0.18.1","v0.18.0","v0.17.4","v0.17.3","v0.17.2","v0.17.1","v0.17.0","v0.16.0","v0.15.0","v0.14.0","v0.13.1","v0.13.0","v0.12.3","v0.12.0","v0.11.3","v0.11.2","v0.11.1","v0.11.0","v0.10.3","v0.10.1","0.9.2","v0.9.1","0.9.1","v0.9","0.9"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59939.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}