Is CVE-2026-44554 actively exploited?

No active exploitation of CVE-2026-44554 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-44554 be exploited remotely?

Yes. CVE-2026-44554 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-44554?

CVE-2026-44554 has a CVSS score of 8.1 (HIGH).

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HIGH

CVE-2026-44554

CWE-862Published: May 15, 2026· Updated: May 19, 2026

8.1

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:11.5th

Official Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the POST /api/v1/retrieval/process/web endpoint accepts a user-supplied collection_name and an overwrite query parameter (default: True). It performs no authorization check on whether the calling user owns or has write access to the target collection. When overwrite=True, save_docs_to_vector_db calls VECTOR_DB_CLIENT.delete_collection() on the target collection before writing new content. This vulnerability is fixed in 0.9.0.

NVD Source

Technical Analysis

CVE-2026-44554 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.