CVE-2026-102810

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.

CVSS 4.0

8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.4% chance of exploitation in the next 30 days; higher than 32% of CVEs (scores of 2026-10-25)

CWE

CWE-22

Published

2026-09-29

Modified

2026-09-30

Record from

the NVD, synced 2026-10-19

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

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