NPM: Hono: Server-Side XSS via JSX Escaping Bypass in cx() Utility

NPM: Hono: Server-Side XSS via JSX Escaping Bypass in cx Utility vulnerability discovered by ? in WordPress Npm hono versions = 4.0.0, 4.12.27...

EUVD-2026-42327

Hono: Server-Side XSS via JSX Escaping Bypass in cx Utility...

NPM: Hono: API Gateway v1 adapter can drop a distinct repeated request header value during de-duplication

NPM: Hono: API Gateway v1 adapter can drop a distinct repeated request header value during de-duplication vulnerability discovered by ? in WordPress Npm hono versions = 4.3.3, 4.12.27...

EUVD-2026-42325

Hono: API Gateway v1 adapter can drop a distinct repeated request header value during de-duplication...

Hono: API Gateway v1 adapter can drop a distinct repeated request header value during de-duplication

Summary The AWS API Gateway v1 adapter can drop a distinct repeated request header value. When a header appears multiple times, the adapter de-duplicates values using a substring comparison instead of an exact match, so a value that is a substring of another value of the same header is omitted fo...

GHSA-XGM2-5F3F-MVVC Hono: API Gateway v1 adapter can drop a distinct repeated request header value during de-duplication

Summary The AWS API Gateway v1 adapter can drop a distinct repeated request header value. When a header appears multiple times, the adapter de-duplicates values using a substring comparison instead of an exact match, so a value that is a substring of another value of the same header is omitted fo...

Astro: composable `astro/hono` pipeline bypasses `security.checkOrigin` when `middleware()` is absent or misordered

Summary In the composable astro/hono pipeline, the security.checkOrigin protection is only installed by the middleware primitive. The actions and pages primitives each dispatch to user code independently, so a pipeline that mounts either primitive before or without middleware will bypass the orig...

GHSA-8MV7-9C27-98VC Astro: composable `astro/hono` pipeline bypasses `security.checkOrigin` when `middleware()` is absent or misordered

Summary In the composable astro/hono pipeline, the security.checkOrigin protection is only installed by the middleware primitive. The actions and pages primitives each dispatch to user code independently, so a pipeline that mounts either primitive before or without middleware will bypass the orig...

CVE-2026-56764 Hono - Timing Attack in basicAuth and bearerAuth Middleware

Hono before 4.11.10 contains a timing attack vulnerability in the basicAuth and bearerAuth middlewares due to non-constant-time string comparison in the timingSafeEqual function. Attackers can exploit early termination of string equality checks to infer valid credentials through precise timing...

CVE-2026-56764

Hono before 4.11.10 contains a timing attack vulnerability in the basicAuth and bearerAuth middlewares due to non-constant-time string comparison in the timingSafeEqual function. Attackers can exploit early termination of string equality checks to infer valid credentials through precise timing...

CVE-2026-56764 Hono - Timing Attack in basicAuth and bearerAuth Middleware

Hono before 4.11.10 contains a timing attack vulnerability in the basicAuth and bearerAuth middlewares due to non-constant-time string comparison in the timingSafeEqual function. Attackers can exploit early termination of string equality checks to infer valid credentials through precise timing...

EUVD-2026-44631

Hono before 4.11.10 contains a timing attack vulnerability in the basicAuth and bearerAuth middlewares due to non-constant-time string comparison in the timingSafeEqual function. Attackers can exploit early termination of string equality checks to infer valid credentials through precise timing...

CVE-2026-56763

Hono before 4.12.7 allows proto key in parseBody with dot option enabled, permitting specially crafted form field names to create objects with proto properties. When parsed results are merged into regular JavaScript objects using unsafe merge patterns, attackers can exploit this to achieve...

CVE-2026-56763 Hono - Prototype Pollution via __proto__ Key in parseBody with dot Option

Hono before 4.12.7 allows proto key in parseBody with dot option enabled, permitting specially crafted form field names to create objects with proto properties. When parsed results are merged into regular JavaScript objects using unsafe merge patterns, attackers can exploit this to achieve...

EUVD-2026-43173

Hono before 4.12.7 allows proto key in parseBody with dot option enabled, permitting specially crafted form field names to create objects with proto properties. When parsed results are merged into regular JavaScript objects using unsafe merge patterns, attackers can exploit this to achieve...

CVE-2026-56763 Hono - Prototype Pollution via __proto__ Key in parseBody with dot Option

Hono before 4.12.7 allows proto key in parseBody with dot option enabled, permitting specially crafted form field names to create objects with proto properties. When parsed results are merged into regular JavaScript objects using unsafe merge patterns, attackers can exploit this to achieve...

CVE-2026-56763

CVE-2026-56763 affects Hono prior to 4.12.7. The parseBody function with dot option enabled accepts proto in field names, allowing prototype pollution when parsed results are merged into regular objects via unsafe merge patterns. Impacted behavior includes modification of object prototypes and po...

0pflow (>=0.1.0-dev.2580522, <=0.1.0-dev.f5622ac), @3onedata/alsatian (>=0.1.8-fix.3, <=0.1.8-fix.5) +668 more potentially affected by CVE-2026-59895 via hono (>=4.0.0, <=4.12.26)

hono NPM version =4.0.0, =0.1.0-dev.2580522, =0.1.8-fix.3, =0.0.2, =0.3.1, =0.9.0, =0.1.0, =0.1.9, =0.2.0, =0.17.0, =0.2.0, =0.4.0, =0.2.0, =0.17.0, =0.28.7 and more Source cves: CVE-2026-59895 Source advisory: SNYK:JS-HONO-17900056...

Cross-site Scripting (XSS)

Overview hono is an Ultrafast web framework for the Edges Affected versions of this package are vulnerable to Cross-site Scripting XSS via the cx class-name handling in src/helper/css/index.ts. An attacker can inject arbitrary HTML into rendered JSX by supplying a malicious class string to cx...

Use of Less Trusted Source

Overview hono is an Ultrafast web framework for the Edges Affected versions of this package are vulnerable to Use of Less Trusted Source through the getHeaders processing in the AWS API Gateway v1 EventV1Processor and the Lattice LatticeV2Processor. An attacker can cause a repeated header value t...