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CVE-2026-34244— Weblate: SSRF via Project-Level Machinery Configuration

Quick assessment

Affected
WeblateOrg weblate
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Weblate是Weblate开源的一个 Copyleft 的基于 web 的自由软件持续本地化系统。 Weblate 5.17之前版本存在安全漏洞，该漏洞源于具有project.edit权限的用户可配置指向任意内部网络地址的机器翻译服务URL，可能导致服务端请求伪造。

CVSS 5.0 · Medium EPSS 0.33% · P24
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I. Basic Information for CVE-2026-34244

Vulnerability Information
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Vulnerability Title
Weblate: SSRF via Project-Level Machinery Configuration
Source: CVE Program / CVE List V5
Vulnerability Description
Weblate is a web based localization tool. In versions prior to 5.17, a user with the project.edit permission (granted by the per-project "Administration" role) can configure machine translation service URLs pointing to arbitrary internal network addresses. During configuration validation, Weblate makes an HTTP request to the attacker-controlled URL and reflects up to 200 characters of the response body back to the user in an error message. This constitutes a Server-Side Request Forgery (SSRF) with partial response read. This issue has been fixed in version 5.17. If developers are unable to immediately upgrade, they can limit available machinery services via WEBLATE_MACHINERY setting.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Weblate 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Weblate是Weblate开源的一个 Copyleft 的基于 web 的自由软件持续本地化系统。 Weblate 5.17之前版本存在安全漏洞，该漏洞源于具有project.edit权限的用户可配置指向任意内部网络地址的机器翻译服务URL，可能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
WeblateOrg weblate < 517 -

II. Public POCs for CVE-2026-34244

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III. Intelligence Information for CVE-2026-34244

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Same Patch Batch · WeblateOrg · 2026-04-15 · 10 CVEs total

CVE-2026-34393 8.8 HIGH Weblate: Privilege escalation in the user API endpoint
CVE-2026-33435 8.1 HIGH Weblate: Remote code execution during backup restoration
CVE-2026-34242 7.7 HIGH Weblate: Arbitrary File Read via Symlink
CVE-2026-33220 6.8 MEDIUM Weblate: JavaScript localization CDN add-on allows arbitrary local file read outside the r
CVE-2026-40256 5.0 MEDIUM Weblate: Prefix-Based Repository Boundary Check Bypass via Symlink/Junction Path Prefix Co
CVE-2026-33440 5.0 MEDIUM Weblate: Authenticated SSRF via redirect bypass of ALLOWED_ASSET_DOMAINS in screenshot URL
CVE-2026-33214 4.3 MEDIUM Weblate has improper access control for the translation memory API
CVE-2026-39845 4.1 MEDIUM Weblate: SSRF via the webhook add-on using unprotected fetch_url()
CVE-2026-33212 3.1 LOW Weblate: Improper access control for pending tasks in API

IV. Related Vulnerabilities

Same product: weblate
Same vendor: WeblateOrg
Same weakness: CWE-200

V. Comments for CVE-2026-34244

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