CVE-2026-70484

MEDIUMNVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.4 under NVD CVSS v3. EPSS exploit probability: 0.4% (33rd percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 5.4Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.7.0 until 0.11.0, the legacy chat-completions features block trusted a client-supplied image_generation flag and did not re-check the features.image_generation permission that the direct image routes and native function-calling path enforce. An authenticated user whose image-generation permission had been revoked could still consume the operator's configured image provider through chat completions, spending API credits and provider quota and writing generated files to operator storage, without exposing provider credentials or other users' data. This issue is fixed in 0.11.0.

CVSS v3
5.4
EG Score
5.4MEDIUMmedium confidence
EG Risk
24
EG Risk 24/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity54% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
33rd
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 4, 2026

Last Modified

September 18, 2026

Advisory Details (4)

Auto-updated Aug 4, 2026
Patch available. Sources: github, github_pr, github_commit, github_release.
github_release Patch Available

v0.11.0

Patch available: open-webui/open-webui v0.11.0

https://github.com/open-webui/open-webui/releases/tag/v0.11.0
github_commit

commit 897d69a35c65 (open-webui/open-webui)

Fix landed in open-webui/open-webui commit 897d69a35c65 — awaiting tagged release

https://github.com/open-webui/open-webui/commit/897d69a35c65f8ab54583bb9ca8dc74eab7bcd29
github_pr

fix: enforce feature permissions on the legacy chat-features block (image_generation, web_search)

Fix merged in open-webui/open-webui PR #26703 on 2026-07-27 — awaiting tagged release

https://github.com/open-webui/open-webui/pull/26703
github Patch Available

Users denied the image-generation permission can still generate images via chat completions · Advisory · open-webui/open-webui · GitHub

https://github.com/open-webui/open-webui/security/advisories/GHSA-g423-grf7-98rv

Vendor Advisories for CVE-2026-70484(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
open-webui0.10.0 ... 0.9.6 (26 versions)
  • 0.7.0 up to 0.11.0: fixed in 0.11.0
—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 46× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 105 total refreshes for this CVE.

  1. 2026-10-04 23:22 UTCEPSS rescore
  2. 2026-10-04 06:09 UTCEG score recompute
  3. 2026-10-03 14:26 UTCEPSS rescore
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  24. 2026-09-18 15:04 UTCEG score recompute▲ 1.10
  25. 2026-09-18 15:02 UTCNVD updateCVSS v3 → 5.4
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  1. 2026-09-18 07:52 UTCEG score recompute
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  74. 2026-08-05 19:17 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2026-70484?
CVE-2026-70484 is a medium vulnerability published on August 4, 2026. Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.7.0 until 0.11.0, the legacy chat-completions features block trusted a client-supplied imagegeneration flag and did not re-check the features.imagegeneration permission that the direct image routes and…
When was CVE-2026-70484 disclosed?
CVE-2026-70484 was first published on August 4, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-70484 actively exploited?
CVE-2026-70484 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (33rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-70484?
CVE-2026-70484 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2026-70484?
A fix for CVE-2026-70484 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-70484 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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