CVE-2026-55146— LORIS has incorrect access checks in issue_tracker

Quick assessment

Affected

aces Loris

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.

LORIS（纵向在线研究与成像系统）是一款自部署的 Web 应用，为神经影像研究提供数据管理和项目管理功能。在 16.0.0 至 27.0.4 之前的版本，以及 28.0.0 至 28.0.2 之前的版本中，（问题跟踪器）后端未能正确验证编辑访问权限，尽管前端已限制用户可编辑的问题范围。已认证用户可向后端提交超出其允许编辑范围的问题修改请求。若部署环境中已不再使用问题跟踪器功能，可通过禁用该模块来关闭相关端点访问。此漏洞已在 27.0.4 和 28.0.2 版本中修复。

CVSS 4.3 · Medium Updated Oct 31, 2026

Possible ATT&CK Techniques 1 AI

T1551.004

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Vulnerability Information

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Vulnerability Title

LORIS has incorrect access checks in issue_tracker

Source: CVE Program / CVE List V5

Vulnerability Description

LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- and project-management for neuroimaging research. In versions from 16.0.0 prior to 27.0.4 and from 28.0.0 prior to 28.0.2, the `issue_tracker` backend does not correctly verify edit access permissions, although the frontend restricts which issues a user may edit. An authenticated user can submit backend changes to issues outside the user's permitted edit scope. Deployments that no longer use Issue Tracker can disable the module to remove access to the endpoint. This issue is fixed in versions 27.0.4 and 28.0.2.

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:N

Source: CVE Program / CVE List V5

Vulnerability Type

授权机制缺失

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
aces	Loris	>= 16.0.0, < 27.0.4	-

II. Public POCs for CVE-2026-55146

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-55146

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Other References for CVE-2026-55146 (5)

https://github.com/aces/Loris/pull/10531 x_refsource_MISC
https://github.com/aces/Loris/releases/tag/v27.0.4 x_refsource_MISC
https://github.com/aces/Loris/releases/tag/v28.0.2 x_refsource_MISC
https://github.com/aces/Loris/security/advisories/GHSA-c9q6-5f24-p7mj x_refsource_CONFIRM
https://github.com/aces/Loris/commit/1856d1b4d48d4412d5a5a845024adb70858ec20d x_refsource_MISC

https://www.cve.org/CVERecord?id=CVE-2026-55146

IV. Related Vulnerabilities

Same product: Loris

Same vendor: aces

Same weakness: CWE-862