CVE-2026-26309

MEDIUM

5.3

Descripcion

Envoy is a high-performance edge/middle/service proxy. Prior to 1.37.1, 1.36.5, 1.35.8, and 1.34.13, an off-by-one write in Envoy::JsonEscaper::escapeString() can corrupt std::string null-termination, causing undefined behavior and potentially leading to crashes or out-of-bounds reads when the resulting string is later treated as a C-string. This vulnerability is fixed in 1.37.1, 1.36.5, 1.35.8, and 1.34.13.

Detalles CVE

Puntuacion CVSS v3.15.3

SeveridadMEDIUM

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado3/10/2026

Ultima modificacion3/11/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

envoyproxy:envoy

Debilidades (CWE)

CWE-193

Referencias

https://github.com/envoyproxy/envoy/security/advisories/GHSA-56cj-wgg3-x943(security-advisories@github.com)

Correlaciones IOC

Sin correlaciones registradas

This product uses data from the NVD API but is not endorsed or certified by the NVD.