CVE-2026-96770— s2s-proxy 接受不受信任的客户端证书漏洞
一分钟漏洞结论
影响对象
Temporal Technologies, Inc. s2s-proxy
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
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 do
可能的 ATT&CK 技术 1 AI
T1557 · Adversary-in-the-Middle影响版本矩阵 1
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Temporal Technologies, Inc. | s2s-proxy | 0.0.1-alpha≤ 0.2.2 |
affected |
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一、 漏洞 CVE-2026-96770 基础信息
漏洞信息
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Vulnerability Title
s2s-proxy accepts untrusted client certificates
来源: CVE Program / CVE List V5
Vulnerability Description
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.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:H
来源: CVE Program / CVE List V5
Vulnerability Type
证书信任链回溯不恰当
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Temporal Technologies, Inc. | s2s-proxy | 0.0.1-alpha ~ 0.2.2 | - |
|
二、漏洞 CVE-2026-96770 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-96770 补丁与修复 (3)
CVE-2026-96770 其他参考 (1)
CVE-2026-96770 其他参考 (1)
IV. Related Vulnerabilities
Same vendor: Temporal Technologies, Inc.
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CVE-2026-89139
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CVE-2026-65654
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CVE-2026-65653
temporalio/tchannel-go zero-chunk call fragment causes proce -
CVE-2026-65652
temporalio/tchannel-go malformed checksum type causes proces
V. Comments for CVE-2026-96770
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