CVE Watch31 jul 2026

CVE-2026-62959

Coturn is a free open source implementation of TURN and STUN Server. From 4.5.2 through 4.14.0, when Coturn is started with --acme-redirect

CVSS

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Sin CVSS

EPSS

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KEV

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Exploit Today

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0-100

Publicado: 31 jul 2026 · Última mod.: 31 jul 2026 · CWE-125 · CWE-195

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

Coturn is a free open source implementation of TURN and STUN Server. From 4.5.2 through 4.14.0, when Coturn is started with --acme-redirect <URL> and exposes a plaintext-TCP listener, an unauthenticated remote client can send a single ordinary HTTP GET request and receive a 301 response whose Location header contains up to ~870 bytes of adjacent process heap memory. The leaked region is a recycled network receive buffer that is reused without being zeroed, so on a busy server it can contain data from other clients' requests (TURN credentials, OAuth tokens, relayed payloads). Root cause is a signed→unsigned conversion. This issue is fixed in version 4.15.0.

Referencias oficiales

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