CVE-2026-29086 (GCVE-0-2026-29086)
Vulnerability from cvelistv5
Published
2026-03-04 22:09
Modified
2026-03-05 15:42
CWE
  • CWE-1113 - Inappropriate Comment Style
Summary
Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.12.4, the setCookie() utility did not validate semicolons (;), carriage returns (\r), or newline characters (\n) in the domain and path options when constructing the Set-Cookie header. Because cookie attributes are delimited by semicolons, this could allow injection of additional cookie attributes if untrusted input was passed into these fields. This issue has been patched in version 4.12.4.
Impacted products
Vendor Product Version
honojs hono Version: < 4.12.4
Create a notification for this product.
Show details on NVD website


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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