Is CVE-2026-29070 actively exploited?

No active exploitation of CVE-2026-29070 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-29070 be exploited remotely?

Yes. CVE-2026-29070 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-29070?

CVE-2026-29070 has a CVSS score of 8.1 (HIGH).

HOME VULNERABILITIESCVE-2026-29070

HIGH

CVE-2026-29070

CWE-862Published: March 27, 2026· Updated: Apr 1, 2026

8.1

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:9.0th

Official Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, an access control check is missing when deleting a file from a knowledge base. The only check being done is that the user has write access to the knowledge base (or is admin), but NOT that the file actually belongs to this knowledge base. It is thus possible to delete arbitrary files from arbitrary knowledge bases (as long as one knows the file id). Version 0.8.6 patches the issue.

NVD Source

Technical Analysis

CVE-2026-29070 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.