Vulnerability · Published Sep 29, 2026 · Assigned by VulnCheck

CVE-2026-102810Marmite through 0.4.2 Path Traversal via Development Server

High 7.5

In plain English

A high-severity path traversal in marmite from rochacbruno. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.4%top 66.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
rochacbruno	marmite	0 – through 0.4.2

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

GitHub Issue #554 issue-tracking
https://github.com/rochacbruno/marmite/blob/4b2ddbd7595233b2e1d0086e18490fec49705098/src/server.rs#L180-L315 technical-description
https://github.com/rochacbruno/marmite/commit/303a0bf2fff4302f4164c0c39932fdffc6683ad4 mitigation, patch
https://github.com/rochacbruno/marmite product
VulnCheck Advisory: Marmite through 0.4.2 Path Traversal via Development Server third-party-advisory