Vulnerability in open-webui (CVE-2026-59213)
Summary
Vulnerability in open-webui (CVE-2026-59213). Risk of unauthorized operations or information disclosure. Exploitable via get_all_models. Mitigation: upgrade to 0.10.0 or later.
Original description
The description as published by the source.
Summary
The get_all_models handlers in routers/openai.py and routers/ollama.py intended to cache their permission-filtered model lists per user, but the @cached decorator was misconfigured: it passed a key= lambda instead of key_builder=. In aiocache 0.12.3 (the pinned version), key= is a static cache key — a callable passed there is used as a constant object, not invoked per call. As a result the per-user key was never computed, and all callers collided onto a single shared cache entry within the TTL window. During that window, one user's permission-filtered model list could be served to a different authenticated user, crossing the per-user authorization boundary.
Impact
- Boundary crossed: Confidentiality (cross-user). A caller can receive the model list scoped to a different security principal than themselves.
- A user (or admin, or — depending on endpoint reachability — anonymous caller) who populates the cache causes the next caller within the TTL to receive that list rather than their own permission-filtered one.
- What's disclosed is the set of models another principal can access, including potentially the existence and naming of models restricted from the receiving user.
- Exposure is incidental and timing-dependent, not attacker-controlled: the leaked entry is whatever the most recent caller populated within
MODELS_CACHE_TTL(default 1 second), and the attacker cannot select the victim or force a target's list into the cac…
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-59213 has been found in open-webui.
Attackers can target a specific entry point like get_all_models over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: 3.5/10.
What to do: upgrade open-webui to 0.10.0 or later.
If unsure, ask your IT team or search "open-webui CVE-2026-59213" on the vendor's site.
CVE-2026-59213 (open-webui) — CWE-524 / CVSS v3 3.5
Attack vector: remote (network-reachable) / no user interaction
Attack surface: get_all_models / MODELS_CACHE_TTL / user.id
Patched: 0.10.0 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-524) exists in open-webui. Attackers reach the vulnerable code path via get_all_models.
Check the vendor advisory for the affected versions of open-webui. Attack surface: get_all_models / MODELS_CACHE_TTL / user.id.
Severity: Low (CVSS 3.5/10). Risk of unauthorized operations or information disclosure.
Update to 0.10.0.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'open-webui' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'open-webui' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
open-webuiを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade open-webui to 0.10.0ステージング環境で 0.10.0 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- advisory nvd.nist.gov
- advisory github.com
- package github.com
- package pypi.org
- web github.com
- web github.com
- web github.com
- web github.com