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CVE-2026-44455

Hono: Unvalidated JSX Tag Names in hono/jsx May Allow HTML Injection

Published: May 13, 2026Updated: May 13, 2026 Sources: CVE List NVDCWE-74
NVD MITRE
4.7CVSSMEDIUM
EPSS Score
0.1%
Top 96.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:RS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-74

Affected Products

honohonojs
Library
OSS Libraries / web-framework
honohono
Library
OSS Libraries / web-framework
honojsoss-projectOSS Librariesaka hono
honooss-projectOSS Librariesaka hono js

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
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References

https://github.com/honojs/hono/security/advisories/GHSA-69xw-7hcm-h432
github.com

Timeline

Published
May 13, 2026
Last Updated
May 13, 2026

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