Withdrawn by the publisher.

Affected: CleanStart: gitness

Multiple security vulnerabilities affect the gitness package. During chain building, the amount of work that is done is not correctly limited when a large number of intermediate certificates are passed in VerifyOptions. See references for individual vulnerability details.

kin-openapi is a Go project for handling OpenAPI files. Prior to 0.131.0, when validating a request with a multipart/form-data schema, if the OpenAPI schema allows it, an attacker can upload a crafted ZIP file (e.g., a ZIP bomb), causing the server to consume all available system memory. The root cause comes from the ZipFileBodyDecoder, which is registered automatically by the module (contrary to what the documentation says). This vulnerability is fixed in 0.131.0.

Affected: Go: github.com/getkin/kin-openapi

### Summary

When validating a request with a multipart/form-data schema, if the OpenAPI schema allows it, an attacker can upload a crafted ZIP file (e.g., a ZIP bomb), causing the server to consume all available system memory.

### Details

The root cause comes from the [ZipFileBodyDecoder](https://github.com/getkin/kin-openapi/blob/6da871e0e170b7637eb568c265c08bc2b5d6e7a3/openapi3filter/req_resp_decoder.go#L1523), which is registered [automatically](https://github.com/getkin/kin-openapi/blob/6da871e0e170b7637eb568c265c08bc2b5d6e7a3/openapi3filter/req_resp_decoder.go#L1275) by the module (contrary to what the [documentation says](https://github.com/getkin/kin-openapi?tab=readme-ov-file#custom-content-type-for-body-of-http-requestresponse).

### PoC To reproduce the vulnerability, you can use the following OpenAPI schema: ```yaml openapi: 3.0.0 info: title: 'Validator' version: 0.0.1 paths: /: post: requestBody: required: true content: multipart/form-data: schema: type: object required: - file properties: file: type: string format: binary responses: '200': description: Created ``` And this code to validate the request (nothing fancy, it basically only calls the `openapi3filter.ValidateRequest` function`): ```go package main

import ( "fmt" "log" "net/http"

"github.com/getkin/kin-openap…

govulncheck-vulndb-0.0.20250327T184518-1.1 on GA media

github.com/getkin/kin-openapi/openapi3filter: Improper Handling of Highly Compressed Data (Data Amplification) in github.com/getkin/kin-openapi/openapi3filter google.golang.org/grpc/grpc-go: google.golang.org/grpc/authz: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation

Security update for mcphost

Affected: Ubuntu:22.04:LTS: golang-github-getkin-kin-openapi, Ubuntu:24.04:LTS: golang-github-getkin-kin-openapi, Ubuntu:26.04:LTS: golang-github-getkin-kin-openapi

kin-openapi is a Go project for handling OpenAPI files. Prior to 0.131.0, when validating a request with a multipart/form-data schema, if the OpenAPI schema allows it, an attacker can upload a crafted ZIP file (e.g., a ZIP bomb), causing the server to consume all available system memory. The root cause comes from the ZipFileBodyDecoder, which is registered automatically by the module (contrary to what the documentation says). This vulnerability is fixed in 0.131.0.