CVE-2026-44455

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 62/100
Published: 2026-05-13 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Required
S: Changed
C: Low
I: Low
A: None

Description

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.16, Improper handling of JSX element tag names in hono/jsx allowed unvalidated tag names to be directly inserted into the generated HTML output. When untrusted input is used as a tag name via the programmatic jsx() or createElement() APIs during server-side rendering, specially crafted values may break out of the intended element context and inject unintended HTML. This vulnerability is fixed in 4.12.16.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
hono hono < 4.12.16

Bug Bounty Relevance

62 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

6.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS — Exploitation Probability

0.14%
Raw Score 0.001400
Percentile 3.4%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00140
2026-10-28
0.00140

Intelligence Sources

nvd ref →