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CVE-2026-55227— Observable object existence disclosure in private Weblate projects via globally scoped object lookups

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 是一个基于 Web 的本地化工具。在 2026.7 之前的版本中，某些端点在查询对象时采用了全局作用域的方式，而没有将查询范围限制在用户可访问的项目内。因此，当用户请求其无权查看的对象时，系统会返回 HTTP 403（禁止访问），而不是 404（未找到）。这种差异使得未授权的用户能够推断出某个对象是否存在于私有的 Weblate 项目中。该问题已在 2026.7 版本中得到修复。

CVSS 4.3 · Medium
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I. Basic Information for CVE-2026-55227

Vulnerability Information
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Vulnerability Title
Observable object existence disclosure in private Weblate projects via globally scoped object lookups
Source: CVE Program / CVE List V5
Vulnerability Description
Weblate is a web-based localization tool. In versions prior to 2026.7, several endpoints look up objects in a globally scoped manner rather than restricting the lookup to projects the user can access, so they return HTTP 403 (Forbidden) instead of 404 (Not Found) when a user requests an object they are not authorized to see. This difference lets unauthorized users infer whether a given object exists in a private Weblate project. The issue has been fixed in version 2026.7.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过差异性导致的信息暴露
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
WeblateOrg weblate < 2026.7 -

II. Public POCs for CVE-2026-55227

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III. Intelligence Information for CVE-2026-55227

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Patches & Fixes for CVE-2026-55227 (1)

Vendor Advisories for CVE-2026-55227 (1)

Same Patch Batch · WeblateOrg · 2026-08-26 · 9 CVEs total

CVE-2026-55228 8.1 HIGH Weblate:: WebIDOR in GroupViewSet allows authenticated project manager to gain unauthorize
CVE-2026-61792 7.7 HIGH Weblate path traversal allows a project administrator to read arbitrary files via App stor
CVE-2026-62326 6.5 MEDIUM Weblate Has Uncontrolled Resource Consumption via
CVE-2026-77507 5.3 MEDIUM Weblate: Object-scoped RSS feeds disclose private change history to unauthorized users
CVE-2026-61790 4.4 MEDIUM Weblate: Team-enforced 2FA is bypassed for global permissions
CVE-2026-62249 4.3 MEDIUM Weblate: Restricted-component change history leaked to non-member project users through th
CVE-2026-77508 3.5 LOW Weblate: Unverified REST API email changes
CVE-2026-77573 3.5 LOW Weblate: DNS rebinding in VCS operations allows server-side request forgery

IV. Related Vulnerabilities

Same product: weblate
Same vendor: WeblateOrg
Same weakness: CWE-203

V. Comments for CVE-2026-55227

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