Threats Tagged 'ubuntu-cve-2026-66046'
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Threats Tagged 'ubuntu-cve-2026-66046'
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Expat through 2.8.3 contains a denial of service vulnerability caused by quadratic algorithmic complexity in the storeAtts() function in xmlparse.c, where processing N specified attributes with non-normalized values triggers an O(N^2) linear scan of elementType->defaultAtts to determine CDATA status. A remote unauthenticated attacker can supply a single well-formed XML document of a few megabytes to an application parsing untrusted XML to cause excessive CPU consumption, resulting in denial of service without requiring authentication, external entity resolution, or non-default parser options. Join the discussion | CVE Database V5 | 08/18/2026, 14:10:05 UTC Added: 08/18/2026, 14:20:54 UTC |
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