【中危】oban_web 安全更新（GHSA-389x-rgxr-8m33）

安全情报快照 · 风险级别：中危 · CVE-2026-48592 · GHSA-389x-rgxr-8m33

先看结论

oban_web存在安全风险，>= 2.12.0, < 2.12.5 受影响，建议升级至 2.12.5。

影响范围

生态	组件	受影响版本	首个修复版本
erlang	`oban_web`	>= 2.12.0, < 2.12.5	2.12.5

处置建议

优先将 oban_web 升级至 2.12.5 或更高版本；升级前请结合业务依赖完成兼容性验证。

上游技术详情（原文）

Summary

oban_web 2.12.0 through the current unpatched release exposes a save-job LiveView event handler that performs no authorization check, allowing any authenticated user (including those with :read_only access) to overwrite a queued job's worker field with any other Oban.Worker module present in the application. On the job's next execution attempt, Oban dispatches perform/1 on the attacker-chosen module instead of the intended one.

Details

In lib/oban/web/live/jobs/detail_component.ex, the sibling event handlers for destructive actions all gate their side effects via can?/2 (cancel, delete, retry). The handle_event("save-job", params, socket) clause added in 2.12.0 has no equivalent guard. It builds a changes map from the client-supplied params (including worker, queue, priority, max_attempts, scheduled_at, tags, args) and unconditionally dispatches {:update_job, job, changes} to the parent LiveView, which writes the changes to the database.

The disabled attribute on the edit fieldset and button in the rendered HTML is advisory only. The Phoenix LiveView channel dispatches any phx-event pushed over the authenticated WebSocket regardless of what the DOM looks like, so the attacker pushes the event directly over the WebSocket without touching the UI.

The attacker is constrained to substituting an existing Oban.Worker module already loaded in the application (no code injection). The impact depends on what workers are available in the target application.

PoC

Obtain an authenticated session with at minimum :read_only access to the Oban.Web dashboard.
Open any job's detail panel to obtain its job ID.
Push a forged save-job event over the LiveView WebSocket with "worker" set to the desired target module name.
The server accepts the payload and updates the job row. On its next execution attempt, Oban invokes perform/1 on the attacker-chosen module.

Impact

CVSS 4.0 score 5.3 (Medium). Any application running oban_web >= 2.12.0 that exposes the dashboard to users with less than full job-management privileges is affected. The only precondition is an authenticated session with :read_only access or higher.

References

Introduction commit: https://github.com/oban-bg/oban_web/commit/a17bc8c31286c9d516e2892cf5483d1c95e65d6c
Patch commit: https://github.com/oban-bg/oban_web/commit/ab3c5d1d3eba06c62045f16f2cd7781c7752e248

来源与许可

本页自动同步 GitHub Advisory Database 的公开数据，并保留上游原文供核验；不宣称原创分析。数据许可：CC-BY-4.0。