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CVE-2026-49450— Joplin desktop Windows auto-updater accepts signed installer from any publisher because app-update.yml has no publisherName

一分钟漏洞结论

影响对象
laurent22 joplin
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。

Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.7.2, Joplin Desktop for Windows omits publisherName from packages/app-desktop/package.json, so the generated app-update.yml causes NsisUpdater.

CVSS 7.1 · High EPSS 0.13% · P3

影响版本矩阵 1

厂商产品 版本范围状态
laurent22 joplin < 3.7.2 affected
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一、 漏洞 CVE-2026-49450 基础信息

漏洞信息

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Vulnerability Title
Joplin desktop Windows auto-updater accepts signed installer from any publisher because app-update.yml has no publisherName
来源: CVE Program / CVE List V5
Vulnerability Description
Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.7.2, Joplin Desktop for Windows omits publisherName from packages/app-desktop/package.json, so the generated app-update.yml causes NsisUpdater.verifySignature() to skip comparison of a downloaded update's Authenticode signer with Joplin's signer. An attacker who controls the update delivery path can replace the update metadata and installer, and the client accepts an installer signed by another publisher or left unsigned after the user approves installation. Successful exploitation runs attacker-controlled code with the user's privileges and can compromise notes, credentials, and local data. This issue is fixed in version 3.7.2.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
对数据真实性的验证不充分
来源: CVE Program / CVE List V5

受影响产品

厂商 产品 影响版本 CPE 订阅
laurent22 joplin < 3.7.2 -

二、漏洞 CVE-2026-49450 的公开POC

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三、漏洞 CVE-2026-49450 的情报信息

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CVE-2026-49450 补丁与修复 (2)

CVE-2026-49450 其他参考 (1)

同批安全公告 · laurent22 · 2026-09-21 · 共 11 条

CVE-2026-46649 9.1 CRITICAL Joplin: SSO Auth Code Login Missing Rate Limiting — 9-Digit Numeric Code Brute-Forceable v
CVE-2026-55105 7.7 HIGH Joplin: Fountain embeds allow arbitrary script execution in published notes and the note v
CVE-2026-59814 7.6 HIGH Joplin: Stored XSS via inline-served note attachment on published shares
CVE-2026-55210 7.4 HIGH Joplin: SAML SSO account takeover via email-based account linking (missing is_external che
CVE-2026-49453 7.0 HIGH Joplin: Path traversal in resource sync — silent arbitrary file write outside the resource
CVE-2026-55179 6.5 MEDIUM Joplin: Logic error in Joplin Server allows a signed-in user to read any note from its int
CVE-2026-46650 4.4 MEDIUM Joplin: Stored XSS in public share viewer via javascript: URL bypass in isAcceptedUrl
CVE-2026-59816 4.3 MEDIUM Joplin: Path traversal in transcribe proxy endpoint via URL-encoded slash
CVE-2026-59815 4.3 MEDIUM Joplin: Pending share recipients can write items into shared folders before accepting invi
CVE-2026-49449 2.5 LOW Joplin: KaTeX `trust:true` enables URL-allowlist bypass leading to NTLMv2 credential theft

IV. Related Vulnerabilities

Same product: joplin
Same vendor: laurent22
Same weakness: CWE-345

V. Comments for CVE-2026-49450

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