CVE-2026-26309

MEDIUM

5.3

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.15.3

SeveridadeMEDIUM

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado3/10/2026

Ultima modificacao3/11/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

envoyproxy:envoy

Fraquezas (CWE)

CWE-193

Referencias

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

Correlacoes IOC

Sem correlacoes registradas

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