CVE-2026-54286

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.25, on Windows hosts, an encoded backslash %5C in the request path decodes to , which the Windows path resolver treats as a separator. serve-static then resolves a single URL segment such as...

CVE-2026-54287

Summary: Hono’s AWS Lambda adapter, in the ALB single-header mode and VPC Lattice v2, concatenates multiple Set-Cookie headers into a single comma-separated value, causing cookie attributes that include commas (e.g., Expires) to be misparsed or dropped. Affected components: Hono web framework; AW...

CVE-2026-54287

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.25, on AWS Lambda, the ALB single-header response and the VPC Lattice v2 response join multiple Set-Cookie headers into one comma-separated value. Because commas also appear inside cookie attribute...

Improperly Implemented Security Check for Standard

Overview hono is an Ultrafast web framework for the Edges Affected versions of this package are vulnerable to Improperly Implemented Security Check for Standard in the Lambda@Edge adapter that truncates repeated request headers. An attacker can bypass access restrictions or affect auditing...

Directory Traversal

Overview hono is an Ultrafast web framework for the Edges Affected versions of this package are vulnerable to Directory Traversal via the serve-static method on Windows hosts when an encoded backslash %5C in the request path is decoded to , which is treated as a separator by the Windows path...

CVE-2026-44459

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.18, improper validation of the JWT NumericDate claims exp, nbf, and iat in hono/utils/jwt allows tokens with non-spec-compliant claim values to silently bypass time-based checks. This issue is not...

CVE-2026-47676

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.21, app.mount strips the mount prefix from the incoming request path using the raw URL pathname, while route matching is performed against the percent-decoded path. This inconsistency causes the...

CVE-2026-39409

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.12, ipRestriction does not canonicalize IPv4-mapped IPv6 client addresses e.g. ::ffff:127.0.0.1 before applying IPv4 allow or deny rules. In environments such as Node.js dual-stack, this can cause...

CVE-2026-39407

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.12, a path handling inconsistency in serveStatic allows protected static files to be accessed by using repeated slashes // in the request path. When route-based middleware e.g., /admin/ is used for...

CVE-2026-39410

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.12, a discrepancy between browser cookie parsing and parse handling allows cookie prefix protections to be bypassed. Cookie names that are treated as distinct by the browser may be normalized to th...

CVE-2026-44456

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.16, bodyLimit does not reliably enforce maxSize for requests without a usable Content-Length e.g. Transfer-Encoding: chunked. Oversized requests can reach handlers and return 200 instead of 413. Th...

EUVD-2026-32924

Hono: app.mount strips mount prefix using undecoded path, causing incorrect routing for percent-encoded paths...

EUVD-2026-32926

Hono: IP Restriction bypasses static deny rules for non-canonical IPv6...

EUVD-2026-32925

Hono: Cookie helper does not sanitize sameSite and priority, allowing Set-Cookie injection...

EUVD-2026-32927

Hono: JWT middleware accepts any Authorization scheme, not only Bearer...

CVE-2026-47674

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.21, the ip-restriction middleware hono/ip-restriction compares incoming IP addresses against configured deny and allow rules using string equality after partial normalization. Non-canonical IPv6...

CVE-2026-47673

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.21, the jwt and jwk middlewares do not verify that the Authorization header value uses theBearer scheme. Any two-part header value — regardless of the scheme name in the first position — proceeds t...

Improper Authorization

Overview hono is an Ultrafast web framework for the Edges Affected versions of this package are vulnerable to Improper Authorization via the jwt middleware when the Authorization header uses any scheme, not just Bearer. An attacker can gain unauthorized access by presenting a valid JWT under a...

CVE-2026-47676

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.21, app.mount strips the mount prefix from the incoming request path using the raw URL pathname, while route matching is performed against the percent-decoded path. This inconsistency causes the...

CVE-2026-47673

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.21, the jwt and jwk middlewares do not verify that the Authorization header value uses theBearer scheme. Any two-part header value — regardless of the scheme name in the first position — proceeds t...