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CVE-2025-66418highCWE-770

urllib3 allows an unbounded number of links in the decompression chain

21Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackcvss 8.9epss 0.7%
probabilidade de exploração
0.7%top 51% das CVEs
exploração observada
nãonenhuma fonte reporta
urllib3 is a user-friendly HTTP client library for Python. Starting in version 1.24 and prior to 2.6.0, the number of links in the decompression chain was unbounded allowing a malicious server to insert a virtually unlimited number of compression steps leading to high CPU usage and massive memory allocation for the decompressed data. This vulnerability is fixed in 2.6.0.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
Produtos afetados
urllib3 · urllib3