Source: python-urllib3 Version: 2.6.3-2 Severity: important Tags: security upstream X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for python-urllib3. CVE-2026-44432[0]: | urllib3 is an HTTP client library for Python. From 2.6.0 to before | 2.7.0, urllib3 could decompress the whole response instead of the | requested portion (1) during the second HTTPResponse.read(amt=N) | call when the response was decompressed using the official Brotli | library or (2) when HTTPResponse.drain_conn() was called after the | response had been read and decompressed partially (compression | algorithm did not matter here). These issues could cause urllib3 to | fully decode a small amount of highly compressed data in a single | operation. This could result in excessive resource consumption (high | CPU usage and massive memory allocation for the decompressed data) | on the client side. This vulnerability is fixed in 2.7.0. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-44432 https://www.cve.org/CVERecord?id=CVE-2026-44432 [1] https://github.com/urllib3/urllib3/security/advisories/GHSA-mf9v-mfxr-j63j Regards, Salvatore
