GHSA-7wqh-767x-r66v

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GHSA-7wqh-767x-r66v

Summary: Local File Inclusion in Rack::Static

Details: ## Summary `Rack::Static` can serve files under the specified `root:` even if `urls:` are provided, which may expose other files under the specified `root:` unexpectedly. ## Details The vulnerability occurs because `Rack::Static` does not properly sanitize user-supplied paths before serving files. Specifically, encoded path traversal sequences are not correctly validated, allowing attackers to access files outside the designated static file directory. ## Impact By exploiting this vulnerability, an attacker can gain access to all files under the specified `root:` directory, provided they are able to determine then path of the file. ## Mitigation - Update to the latest version of Rack, or - Remove usage of `Rack::Static`, or - Ensure that `root:` points at a directory path which only contains files which should be accessed publicly. It is likely that a CDN or similar static file server would also mitigate the issue.

References: https://github.com/rack/rack/security/advisories/GHSA-7wqh-767x-r66v, https://nvd.nist.gov/vuln/detail/CVE-2025-27610, https://github.com/rack/rack/commit/50caab74fa01ee8f5dbdee7bb2782126d20c6583, https://github.com/rack/rack, https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2025-27610.yml, https://lists.debian.org/debian-lts-announce/2025/03/msg00016.html