Is CVE-2026-44432 actively exploited?

No active exploitation of CVE-2026-44432 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-44432 be exploited remotely?

Yes. CVE-2026-44432 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-44432?

CVE-2026-44432 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2026-44432

CWE-409Published: May 13, 2026· Updated: May 14, 2026

7.5

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:12.9th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-44432 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.