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CVE-2026-48052— Papra: Cross-organization tag deletion and modification via authenticated cross-tenant request

Quick assessment

Affected
papra-hq papra
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.

Papra 是一个极简主义的文档管理和归档平台。在 26.5.0 版本之前，任何组织的已认证成员都可以利用目标标签的 ID，删除或重命名属于其他组织的标签。路由处理器会验证调用者是否属于 URL 中“:organizationId”所标识的组织，但仓库层的写入操作仅基于 tag.id 进行过滤，导致 URL 层面的组织范围限制未能传递到数据库。该漏洞已在 26.5.0 版本中修复。

CVSS 5.4 · Medium EPSS 0.37% · P28

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
papra-hq papra < 26.5.0 affected
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I. Basic Information for CVE-2026-48052

Vulnerability Information
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Vulnerability Title
Papra: Cross-organization tag deletion and modification via authenticated cross-tenant request
Source: CVE Program / CVE List V5
Vulnerability Description
Papra is a minimalistic document management and archiving platform. Prior to version 26.5.0, an authenticated user who is a member of any organization can delete or rename tags belonging to a different organization, given the target tag's ID. The route handler verifies the caller's membership of the ":organizationId" in the URL, but the repository write filters on tag.id alone, so the URL-level org scope never reaches the database. This issue has been patched in version 26.5.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
papra-hq papra < 26.5.0 -

II. Public POCs for CVE-2026-48052

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III. Intelligence Information for CVE-2026-48052

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Patches & Fixes for CVE-2026-48052 (2)

Vendor Advisories for CVE-2026-48052 (1)

IV. Related Vulnerabilities

Same product: papra
Same vendor: papra-hq
Same weakness: CWE-639

V. Comments for CVE-2026-48052

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