4.8

CVE-2026-39410

Hono has a non-breaking space prefix bypass in cookie name handling in getCookie()

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.12, a discrepancy between browser cookie parsing and parse() handling allows cookie prefix protections to be bypassed. Cookie names that are treated as distinct by the browser may be normalized to the same key by parse(), allowing attacker-controlled cookies to override legitimate ones. This vulnerability is fixed in 4.12.12.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Hono ≫ Hono SwPlatform node.js Version <= 4.12.11
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.28% 0.199
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 4.8 2.2 2.5
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

https://github.com/honojs/hono/releases/tag/v4.12.12
Release Notes
https://github.com/honojs/hono/commit/cc067c85592415cb1880ad3c61ed923472452ec0
Third Party Advisory
https://github.com/honojs/hono/security/advisories/GHSA-r5rp-j6wh-rvv4
Vendor Advisory