VDB
CVE-2026-29086
CVE-2026-29086
PUBLISHED
CVSS 5.400000095367432 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 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.
EPSS 0.04% · 12.6th percentile
Risk Scores
CVSS v3.1
5.400000095367432
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
EPSS Score
0.04%
12.6th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| hono | hono | 0, 0, 0 |
| npm | hono | 0, 0, 0 |
| honojs | hono | *, < 4.12.4, < 4.12.4 |
Timeline
- Mar 4, 2026 CVE Published
- Mar 5, 2026 CVE Updated
- Mar 5, 2026 EPSS Score
- Mar 5, 2026 PoC Published
- Mar 6, 2026 EPSS Score
- Mar 7, 2026 EPSS Score
- Mar 9, 2026 EPSS Score
- Mar 9, 2026 Security Advisory
- Mar 10, 2026 EPSS Score
- Mar 11, 2026 EPSS Score
- Mar 12, 2026 EPSS Score
- Mar 13, 2026 EPSS Score