漏洞信息
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Vulnerability Title
Gotenberg: Unauthenticated denial of service via echo.Context pool reuse in webhook async goroutine
Vulnerability Description
Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.32.0, the webhook middleware spawns a goroutine that holds a reference to the request's echo.Context after the synchronous handler returns ErrAsyncProcess and Echo recycles the context back to its sync.Pool. When a concurrent request claims the recycled context, c.Reset() clears the store. If the webhook goroutine reaches hardTimeoutMiddleware at that moment, an unchecked type assertion on a nil store entry panics outside any recover() scope, crashing the Gotenberg process. Any anonymous caller reaches the webhook path (default webhook-deny-list filters only the webhook destination, not the submitter). A single-source stress of ~24 webhook requests plus ~60 GET /version requests crashes the process in about two seconds. This vulnerability is fixed in 8.32.0.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vulnerability Type
使用共享资源的并发执行不恰当同步问题(竞争条件)
Vulnerability Title
Gotenberg 竞争条件问题漏洞
Vulnerability Description
Gotenberg是Gotenberg开源的一个开发人员友好的 API。用于将多种文档格式转换为 PDF 文件。 Gotenberg 8.32.0之前版本存在竞争条件问题漏洞,该漏洞源于webhook中间件在上下文回收后使用未检查的类型断言,导致空指针恐慌,造成进程崩溃。
CVSS Information
N/A
Vulnerability Type
N/A