CVE-2026-102810

Description

Marmite through 0.4.2 contains a path traversal vulnerability in the development server started by --serve that allows unauthenticated attackers to read arbitrary files. The handle_request function in src/server.rs fails to reject .. segments after percent-decoding and joining the request path to the output folder, enabling attackers to request encoded traversal sequences to access files readable by the marmite process.

References

• https://github.com/rochacbruno/marmite
• https://github.com/rochacbruno/marmite/blob/4b2ddbd7595233b2e1d0086e18490fec49705098/src/server.rs#L180-L315
• https://github.com/rochacbruno/marmite/commit/303a0bf2fff4302f4164c0c39932fdffc6683ad4
• https://github.com/rochacbruno/marmite/issues/554
• https://www.vulncheck.com/advisories/marmite-through-0.4.2-path-traversal-via-development-server