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CVE-2026-29086

🟡 MEDIUM

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 newlin...

Published
Mar 04, 2026
Last Modified
Mar 04, 2026
Views
2
Bookmarks
0

Description

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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.

CVSS Scores

CVSS 3.1 5.4
5.4
MEDIUM
CVSS 2.0 5.4

References

github.com github.com

Additional Information

Source
security-advisories@github.com
State
Received

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