CVE Watch24 sept 2026

CVE-2026-96770

All published s2s-proxy versions through 0.2.2 are affected. In versions 0.1.16 through 0.2.2, TLS server listeners use Go's RequireAnyClien

CVSS

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Sin CVSS

EPSS

0.3%

p16

KEV

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Exploit Today

0-100

Publicado: 23 sept 2026 · Última mod.: 24 sept 2026 · CWE-296

EPSS · 30d

0.3%EPSS · 30 días0.3%

2026-09-242026-10-20

Descripción técnica

All published s2s-proxy versions through 0.2.2 are affected. In versions 0.1.16 through 0.2.2, TLS server listeners use Go's RequireAnyClientCert mode when skipCAVerification is false. This mode checks that the client holds the certificate's private key but does not verify the certificate against the configured CA. An attacker can therefore use a self-signed certificate and key to establish a TLS and yamux connection, then invoke RPCs allowed by the proxy's configuration and Temporal credentials. No certificate or private key trusted by the deployment, and no Temporal credential, is required.

Referencias oficiales

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