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CVE-2026-65055— Taiga taiga-back Private Project Member Roster Disclosure via Unauthenticated filters_data Endpoints

Quick assessment

Affected
Taiga taiga-back
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.

Taiga Taiga Backend是Taiga公司的一款项目管理软件的后端组件。 Taiga Backend 6.10.1版本存在授权问题漏洞，该漏洞源于缺少授权验证，可能导致未经身份验证的攻击者通过向UserStory、Task、Issue和Epic视图集的filters_data API端点提供项目ID，披露任何私有项目的完整成员名单和内部工作流配置。

CVSS 5.3 · Medium EPSS 0.33% · P24

Affected Version Matrix 1

VendorProduct Version RangeStatus
Taiga taiga-back 6.10.1 affected
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I. Basic Information for CVE-2026-65055

Vulnerability Information
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Vulnerability Title
Taiga taiga-back Private Project Member Roster Disclosure via Unauthenticated filters_data Endpoints
Source: CVE Program / CVE List V5
Vulnerability Description
Taiga 6.10.1 contains a missing authorization vulnerability that allows unauthenticated attackers to disclose the full member roster and internal workflow configuration of any private project by supplying a project ID to the filters_data API endpoints on UserStory, Task, Issue, and Epic viewsets. Attackers can send unauthenticated GET requests to the filters_data endpoints with sequential integer project IDs to enumerate private project membership details including user IDs, full names, and gravatar hashes, bypassing the access controls that correctly restrict other project API endpoints.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Taiga Backend 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Taiga Taiga Backend是Taiga公司的一款项目管理软件的后端组件。 Taiga Backend 6.10.1版本存在授权问题漏洞，该漏洞源于缺少授权验证，可能导致未经身份验证的攻击者通过向UserStory、Task、Issue和Epic视图集的filters_data API端点提供项目ID，披露任何私有项目的完整成员名单和内部工作流配置。
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
Taiga taiga-back 6.10.1 -

II. Public POCs for CVE-2026-65055

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III. Intelligence Information for CVE-2026-65055

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Vendor Advisories for CVE-2026-65055 (1)

Proof of Concept for CVE-2026-65055 (1)

Vendor Pages for CVE-2026-65055 (1)

IV. Related Vulnerabilities

Same product: taiga-back
Same vendor: Taiga
Same weakness: CWE-862

V. Comments for CVE-2026-65055

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