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MEDIUM

CVE-2025-31486

CVSS v3

5.3

MEDIUM

EPSS Score

40.5 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • vitenpmall versions · fixed in 4.5.12

Vendor advisories

  • CVE-2025-31486 Red Hat Product Security11 known affected

    vite: Vite allows server.fs.deny to be bypassed with .svg or relative paths

    automation-controller.src as a component of Red Hat Ansible Automation Platform 2 · automation-eda-controller.src as a component of Red Hat Ansible Automation Platform 2 · automation-gateway.src as a component of Red Hat Ansible Automation Platform 2

Full record on NVD

Description

Vite is a frontend tooling framework for javascript. The contents of arbitrary files can be returned to the browser. By adding ?.svg with ?.wasm?init or with sec-fetch-dest: script header, the server.fs.deny restriction was able to bypass. This bypass is only possible if the file is smaller than build.assetsInlineLimit (default: 4kB) and when using Vite 6.0+. Only apps explicitly exposing the Vite dev server to the network (using --host or server.host config option) are affected. This vulnerability is fixed in 4.5.12, 5.4.17, 6.0.14, 6.1.4, and 6.2.5.

Technical details

Published
2025-04-03

Frequently asked questions

What is CVE-2025-31486?

Vite is a frontend tooling framework for javascript. The contents of arbitrary files can be returned to the browser. By adding ?.svg with ?.wasm?init or with sec-fetch-dest: script header, the server.fs.deny restriction was able to bypass. This bypass is only possible if the file is smaller than build.assetsInlineLimit (default: 4kB) and when using Vite 6.0+. Only apps explicitly exposing the Vite dev server to the network (using --host or server.host config option) are affected. This vulnerability is fixed in 4.5.12, 5.4.17, 6.0.14, 6.1.4, and 6.2.5.

Is CVE-2025-31486 actively exploited?

Active exploitation of CVE-2025-31486 has not been confirmed. Its EPSS score was 40.5% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-31486?

CVE-2025-31486 has a CVSS v3 base score of 5.3 (MEDIUM severity).

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