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CVE-2026-61598— Client mass-assignment of arbitrary view attributes via the default dj-model update_model handler

Quick assessment

Affected
djust-org djust
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

djust 为 Django 提供类 Phoenix LiveView 的响应式服务器端渲染，并借助 Rust 获得高性能表现。在 1.0.7 版本之前， 提供了一个默认的 事件处理器，并且它是 LiveView 基类方法解析顺序（MRO）的一部分，因此每个 LiveView 都默认暴露该事件。 该处理器会通过 设置一个视图属性，其属性名称由客户端提供（即参数 ），但仅受以下限制约束： 拒绝以下划线 开头的属性名； 拒绝包含 14 个条目的框架内部字段黑名单（ ）； 可选的 允许列表（默认为 None，即默认允许所

CVSS 7.1 · High
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I. Basic Information for CVE-2026-61598

Vulnerability Information
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Vulnerability Title
Client mass-assignment of arbitrary view attributes via the default dj-model update_model handler
Source: CVE Program / CVE List V5
Vulnerability Description
djust provides Phoenix LiveView-style reactive server-side rendering for Django with Rust-powered performance. Prior to version 1.0.7, `djust.mixins.model_binding.ModelBindingMixin` provides a default `update_model` event handler and is part of the LiveView base MRO, so every LiveView exposes it. It `setattr`s a view attribute whose name is client-supplied (`field`), gated only by: reject `_`-prefixed names; reject a 14-entry denylist of framework internals (`FORBIDDEN_MODEL_FIELDS`); optional `allowed_model_fields` which defaults to None = allow all; and `hasattr` existence. As a result, a client can set any public, existing view attribute — not just the fields actually bound with `dj-model=` in the rendered template. The denylist covers framework plumbing but nothing about developer business/authz state, and the allowlist is opt-in (off by default). A developer who binds one `dj-model="search"` input and also keeps `self.account_id` / `self.is_admin` / `self.total_price` as view state does not realize a client can set ALL of them via `{type:event, event:"update_model", params:{field, value}}` over the WebSocket. Type coercion matches the target attribute's type (so `"true"` -> bool True), aiding the attacker. This issue is fixed in djust 1.0.7. As a workaround, set `allowed_model_fields` explicitly on every view using dj-model (or subclassing LiveView) to the minimal list of bindable fields; do not keep authorization/ownership state in public view attributes that share the view with dj-model bindings.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-915
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
djust-org djust < 1.0.7 -

II. Public POCs for CVE-2026-61598

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III. Intelligence Information for CVE-2026-61598

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Vendor Advisories for CVE-2026-61598 (1)

Vendor Pages for CVE-2026-61598 (1)

Same Patch Batch · djust-org · 2026-09-16 · 4 CVEs total

CVE-2026-61593 8.1 HIGH djust has Cross-Site Request Forgery on the Server-Sent-Events transport: a cross-origin p
CVE-2026-61595 7.7 HIGH djust: Multi-tenant isolation fails open on the WebSocket/SSE path, disclosing other tenan
CVE-2026-61590 7.4 HIGH djust's observability endpoints are network-exposed: the localhost gate is an opt-in middl

IV. Related Vulnerabilities

Same product: djust
Same vendor: djust-org
Same weakness: CWE-915

V. Comments for CVE-2026-61598

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