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CVE-2026-11946

GetEndpoints Memory Exhaustion in open62541

An unauthenticated remote attacker can exhaust server memory via the GetEndpoints Discovery Service in open62541. The endpointUrl field of GetEndpointsRequest is not validated for length. An attacker can declare an arbitrarily large string (up to ~4.09 GB via the UInt32 length field) delivered across intermediate chunks without ever sending the final chunk. The server buffers all chunks in RAM indefinitely until the SecureChannel times out. The attack is pre-session and bypasses all encryption configurations. The issue affects open62541: from 1.4.0 through 1.4.16, from 1.5.0 through 1.5.4, master.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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CVE-2026-27404

WordPress LMS theme <= 9.7 - Reflected Cross Site Scripting (XSS) vulnerability

Unauthenticated Cross Site Scripting (XSS) in LMS <= 9.7 versions.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Products
CVE-2026-27430

WordPress TheFox theme <= 3.9.76 - Reflected Cross Site Scripting (XSS) vulnerability

Unauthenticated Cross Site Scripting (XSS) in TheFox <= 3.9.76 versions.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Products