CVE-2026-59213: open-webui
Vulnerability summary
CVE-2026-59213 is a medium (CVSS 5.0) vulnerability in open-webui. EPSS estimates a 0.37% chance of exploitation in the next 30 days, higher than 29.9% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 09-07-2026PublishedVulnerability first disclosed.
- 09-07-2026Last modifiedVulnerability information updated.
Description
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.6.27 before 0.10.0, get_all_models handlers in routers/openai.py and routers/ollama.py passed a lambda to aiocache key instead of key_builder, causing permission-filtered per-user model lists to share a static cache entry and exposing one user’s model list to another caller during the TTL window. This issue is fixed in version 0.10.0.
CVSS metrics
3 scores · 3 sources · 1 version- CVE.orgCNA3.5LowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:NDiffers
- OSV · PypiEcosystem advisory · calculated3.5LowCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:NDiffers
EPSS trend
Probability
0.37%
Chance of exploitation in the next 30 days
Percentile
30%
Versus all other CVEs
30-day change
+0.08 pp
From 0.30% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundOpen Webui
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Open-webui1 product
- open-webui≥ 0.6.27, < 0.10.0
Openwebui1 product
- open_webui≥ 0.6.27, < 0.10.0
PyPI1 product
- open-webui≥ 0.6.27, < 0.10.0
3 vendors · 3 products
References
8 links- github.com/open-webui/open-webui/security/advisories/GHSA-3wp3-xxj9-5jqqX Refsource CONFIRMWEBExploitMitigationVendor Advisory
- github.com/open-webui/open-webui/commit/0fc630b34b2899599dabffffa012afd47599aa75X Refsource MISCWEBPatch
- pypi.org/project/open-webuiPACKAGE