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CVE-2026-18647— jina-ai reader Crawler/Puppeteer crawler.ts isValidTLD server-side request forgery

Quick assessment

Affected
jina-ai reader
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Jina AI Reader是Jina AI公司开源的一款将网页内容转换为大语言模型友好格式的工具。 Jina AI Reader存在服务端请求伪造漏洞，该漏洞源于Crawler/Puppeteer组件的isValidTLD函数对文件/backend/functions/src/cloud-functions/crawler.ts的操作，导致服务端请求伪造。

CVSS 7.3 · High EPSS 0.47% · P39

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
jina-ai reader 1574bfd380d249c86c82db4dace0d9c8fe17e2b1 affected
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I. Basic Information for CVE-2026-18647

Vulnerability Information
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Vulnerability Title
jina-ai reader Crawler/Puppeteer crawler.ts isValidTLD server-side request forgery
Source: CVE Program / CVE List V5
Vulnerability Description
A security vulnerability has been detected in jina-ai reader up to 1574bfd380d249c86c82db4dace0d9c8fe17e2b1. This issue affects the function isValidTLD of the file /backend/functions/src/cloud-functions/crawler.ts of the component Crawler/Puppeteer. The manipulation leads to server-side request forgery. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. This product follows a rolling release approach for continuous delivery, so version details for affected or updated releases are not provided. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Jina AI Reader 服务端请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Jina AI Reader是Jina AI公司开源的一款将网页内容转换为大语言模型友好格式的工具。 Jina AI Reader存在服务端请求伪造漏洞，该漏洞源于Crawler/Puppeteer组件的isValidTLD函数对文件/backend/functions/src/cloud-functions/crawler.ts的操作，导致服务端请求伪造。
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

Vendor Product Affected Versions CPE Subscribe
jina-ai reader 1574bfd380d249c86c82db4dace0d9c8fe17e2b1 cpe:2.3:a:jina-ai:reader:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-18647

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7354 chars
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Trigger conditions & impact
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Exploit chain & mitigation
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III. Intelligence Information for CVE-2026-18647

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Other References for CVE-2026-18647 (1)

IV. Related Vulnerabilities

Same product: reader
Same vendor: jina-ai
Same weakness: CWE-918

V. Comments for CVE-2026-18647

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