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.
Metrics
Affected Vendors & Products
References
History
Thu, 05 Mar 2026 16:15:00 +0000
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ssvc
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Thu, 05 Mar 2026 09:15:00 +0000
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Hono
Hono hono |
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| Vendors & Products |
Hono
Hono hono |
Wed, 04 Mar 2026 22:30:00 +0000
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| 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. | |
| Title | Hono: Arbitrary file access via serveStatic vulnerability | |
| Weaknesses | CWE-177 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-03-04T22:09:22.045Z
Updated: 2026-03-05T15:42:05.041Z
Reserved: 2026-03-03T17:50:11.243Z
Link: CVE-2026-29045
Updated: 2026-03-05T15:39:30.478Z
Status : Undergoing Analysis
Published: 2026-03-04T23:16:10.247
Modified: 2026-03-05T19:38:53.383
Link: CVE-2026-29045
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