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CVE-2026-32887
No affected components available
Effect is a TypeScript framework that consists of several packages that work together to help build TypeScript applications. Prior to version 3.20.0, when using RpcServer.toWebHandler (or HttpApp.toWebHandlerRuntime) inside a Next.js App Router route handler, any Node.js AsyncLocalStorage-dependent API called from within an Effect fiber can read another concurrent request's context — or no context at all. Under production traffic, auth() from @clerk/nextjs/server returns a different user's session. Version 3.20.0 contains a fix for the issue.
The vulnerability can be exploited over the network without needing physical access. It is difficult for an attacker to exploit this vulnerability and may require special conditions. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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