5.4

CVE-2026-59212: open-webui Incorrect Authorization

CVSS: 5.4v3.1MediumAnalyzed
AliasesGHSA-2xwm-4h2q-ggfxPYSEC-2026-3588
Published 09-07-2026Last modified 09-07-2026
Open JSON

Vulnerability summary

CVE-2026-59212 is a medium (CVSS 5.4) Incorrect Authorization vulnerability in open-webui. EPSS estimates a 0.42% chance of exploitation in the next 30 days, higher than 35.1% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.4/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.42%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 09-07-2026
    PublishedVulnerability first disclosed.
  2. 09-07-2026
    Last modifiedVulnerability information updated.

Description

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.6 before 0.10.0, _verify_knowledge_file_access only checked read access while file write and delete routes later trusted object-derived access through writable model meta.knowledge entries, allowing a user with read-only knowledge file access to upgrade to file write or delete operations. This issue is fixed in version 0.10.0.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.42%

Chance of exploitation in the next 30 days

Percentile

35%

Versus all other CVEs

30-day change

0.00 pp

From 0.42% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.42%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Open Webui

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Open-webui1 product
Openwebui1 product
PyPI1 product
  • open-webui≥ 0.9.6, < 0.10.0

3 vendors · 3 products

References

8 links