CVE-2026-55146: medium-severity vulnerability in aces Loris
LORIS has incorrect access checks in issue_tracker
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.3epss 0.2%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Affected products
aces · LorisRelated CVEs — aces Loris
In the same product, most dangerous first.
CVE-2026-26984HIGHLORIS media module vulnerable to remote code executionEPSS 0.8%CVE-2026-26985HIGHLORIS vulnerable to path traversal in electrophysiology_browserEPSS 0.4%CVE-2026-34392HIGHLORIS has a path traversal in static routerEPSS 0.3%CVE-2026-33350HIGHLORIS has a SQL injection in MRI feedback popupEPSS 0.3%CVE-2026-35446HIGHLORIS has a path traversal in FilesDownloadHandlerEPSS 0.2%CVE-2026-34985MEDIUMLORIS has incorrect access checks in media moduleEPSS 0.2%