CVE Catalog

CVE-2026-87013

MediumCVSS 4.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.27%

19th percentile - higher than 19% of all known CVEs

Summary

Open WebUI from 0.10.0 to 0.11.1 allows an authenticated user to place a folder under itself or one of its descendants, creating a cycle in the folder tree. The lack of visited-folder tracking during delete and read operations enables a request that consumes CPU and memory indefinitely until repaired.

Risk Assessment

An attacker can cause prolonged server overload, leading to denial of service for other users. The cycle condition persists until manually fixed, potentially requiring administrator intervention.

Recommendation

Upgrade Open WebUI to version 0.11.1 or later, which includes the fix. After upgrading, check and repair any existing folder tree cycles.

Other vulnerabilities in Open WebUI

See all
Original NVD description (English source)

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.1, POST /api/v1/folders/{id}/update/parent allowed a user to place a folder under itself or one of its descendants, while the folder tree walks used by DELETE /api/v1/folders/{id} and POST /api/v1/folders/{id}/read did not track visited folder identifiers. An authenticated user could persist a parent cycle and start a request that consumed CPU and memory indefinitely, with the condition remaining stored until repaired. This issue is fixed in version 0.11.1.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS