CVE-2026-109955

MediumCVSS 5.3/10Last modified Oct 13, 2026

Description

Hono from 4.12.4 before 4.13.11 contains a middleware bypass vulnerability in serveStatic that allows unauthenticated attackers to skip prefix middleware by exploiting double path decoding. Attackers can send malformed percent-encoded paths that the router matches in encoded form, reaching static files without authentication checks running.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-174

Affected software

No affected versions have been published.

Timeline

Published
Oct 13, 2026
Last modified
Oct 13, 2026
NVD status
Deferred

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CVE-2026-109955: Medium severity, CVSS 5.3 | Vulnix