CVE-2026-61782
@rsdoctor/rspack-plugin has Unauthenticated HTTP API that Exposes Project Source Code and Build Metadata
Impact
Rsdoctor is a build analyzer tailored for projects built with Rspack. Prior to version 1.5.16, the default Rsdoctor report HTTP server started by `@rsdoctor/rspack-plugin` binds to all network interfaces (`0.0.0.0`) and serves a `POST /api/data/key` endpoint with no authentication and wildcard CORS (`Access-Control-Allow-Origin: *`). Any network-adjacent or remote attacker can send a single unauthenticated request to retrieve the full source code of all compiled JavaScript modules (`moduleCodeMap`), serialized build configuration (`configs`), error details, and other sensitive build metadata. This server is enabled by default in non-CI environments, requiring no special configuration from the victim developer. Version 1.5.16 patches the issue.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | @rsdoctor/rspack-plugin | <= 1.5.15 | 1.5.16 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-jmg2-rcxh-w8q3
- https://github.com/web-infra-dev/rsdoctor/security/advisories/GHSA-jmg2-rcxh-w8q3
- https://nvd.nist.gov/vuln/detail/CVE-2026-61782
- https://github.com/web-infra-dev/rsdoctor/pull/1744
- https://github.com/web-infra-dev/rsdoctor/pull/1758
- https://github.com/web-infra-dev/rsdoctor/commit/602eb306a49b6d19c4c1ea9d8ee0f8caab9e208f
- https://github.com/web-infra-dev/rsdoctor/commit/e9aaef21f85becfe43a46f716509f41ea5edeb40