CVE-2026-29045
7.5 · HIGHOverview
CVE-2026-29045 is a high-severity vulnerability affecting hono hono. It was published on March 4, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.12.4, when using serveStatic together with route-based middleware protections (e.g. app.use('/admin/*', ...)), inconsistent URL decoding allowed protected static resources to be accessed without authorization. The router used decodeURI, while serveStatic used decodeURIComponent. This mismatch allowed paths containing encoded slashes (%2F) to bypass middleware protections while still resolving to the intended filesystem path. This issue has been patched in version 4.12.4.
Remediation
Check the references section for vendor advisories and patches from hono. Update hono to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| hono | hono | >= 0, < 4.12.4 | Affected |
Frequently Asked Questions
What is CVE-2026-29045?
CVE-2026-29045 is a high-severity vulnerability affecting hono hono. It was published on March 4, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2026-29045?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-29045?
Check the references section for vendor advisories and patches from hono. Update hono to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-29045?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-29045 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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