Cross-Site Scripting Risk in Hono Framework Versions
CVE-2026-93981

2.3LOW

Key Information:

Vendor

Honojs

Status
Hono
Vendor
CVE Published:
19 September 2026

What is CVE-2026-93981?

The hono/jsx framework before version 4.13.7 is susceptible to Cross-Site Scripting (XSS) due to inadequate HTML escaping of plain strings. This occurs when rendered in specific contexts like children of Suspense, ErrorBoundary, and as root values passed to rendering functions. An attacker can exploit this vulnerability by injecting arbitrary HTML, compromising the application's security during server-side rendering.

Affected Version(s)

hono 0 < 4.13.7

hono 4.13.7

References

https://github.com/honojs/hono/security/advisories/GHSA-h...
vendor-advisory
https://www.vulncheck.com/advisories/hono-jsx-before-4.13...
third-party-advisory

CVSS V4

Score:
2.3
Severity:
LOW
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

ggmolly
.