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I. Basic Information for CVE-2026-34526
Vulnerability Information

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Vulnerability Title
SillyTavern: Incomplete IP validation in /api/search/visit allows SSRF via localhost and IPv6
Source: NVD (National Vulnerability Database)
Vulnerability Description
SillyTavern is a locally installed user interface that allows users to interact with text generation large language models, image generation engines, and text-to-speech voice models. Prior to version 1.17.0, in src/endpoints/search.js, the hostname is checked against /^\d+\.\d+\.\d+\.\d+$/. This only matches literal dotted-quad IPv4 (e.g. 127.0.0.1, 10.0.0.1). It does not catch: localhost (hostname, not dotted-quad), [::1] (IPv6 loopback), and DNS names resolving to internal addresses (e.g. localtest.me -> 127.0.0.1). A separate port check (urlObj.port !== '') limits exploitation to services on default ports (80/443), making this lower severity than a fully unrestricted SSRF. This issue has been patched in version 1.17.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
服务端请求伪造(SSRF)
Source: NVD (National Vulnerability Database)
Vulnerability Title
SillyTavern 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SillyTavern是SillyTavern开源的一个大语言模型的前端界面。 SillyTavern 1.17.0之前版本存在代码问题漏洞,该漏洞源于主机名检查仅匹配字面点分十进制IPv4地址,可能导致服务端请求伪造攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
SillyTavernSillyTavern < 1.17.0 -
II. Public POCs for CVE-2026-34526
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III. Intelligence Information for CVE-2026-34526
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IV. Related Vulnerabilities
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