MAL-2026-2838 Malicious code in koa-v3 (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 5868e3008cddae6f0d4f1594e5f22c25d905ca6e32b915c4b527ad2ed77cce7f The package koa-v3 was found to contain malicious code. Source: ghsa-malware 16ed2d5a3189595a73eb117e70d2a31ba6ed920704a2917c7f83aacb8b5f42d1 Any...

Security Bulletin: IBM App Connect Enterprise Certified Container DesignerAuthoring operands are vulnerable to loss of confidentiality (CVE-2026-27959)

Summary Node.js module Koa is used by IBM App Connect Enterprise Certified Container. IBM App Connect Enterprise Certified Container DesignerAuthoring operands are vulnerable to loss of confidentiality. This bulletin provides patch information to address the reported vulnerability in Node.js modu...

@akash-aw/aw-wizard-forms (4.14.0), @alfresco/aca-generators (>=1.0.0, <=1.0.1) +137 more potentially affected by CVE-2026-27959 via koa (>=3.0.0, <=3.1.1)

koa NPM version =3.0.0, =1.0.0, =1.0.0, =0.44.0, =0.0.0-nightly-20260213031600, =0.0.0-nightly-20260317031259, =0.0.0-nightly-20260317031259, =0.0.0-nightly-20260213031600, =2025.12.1, =2.23.0, =0.0.1, =0.20.0, =0.0.5, =2026.1.2, =2.0.0, =2.0.1 and more Source cves: CVE-2026-27959 Source advisory...

Koa has Host Header Injection via ctx.hostname

Summary Koa's ctx.hostname API performs naive parsing of the HTTP Host header, extracting everything before the first colon without validating the input conforms to RFC 3986 hostname syntax. When a malformed Host header containing a @ symbol e.g., evil.com:[email protected] is received,...

@0xyy/elpis (>=1.0.0, <=1.0.2), @10xsai/cloudflare-router-nx-plugin (1.0.0) +1522 more potentially affected by CVE-2026-27959 via koa (>=2.0.0, <=2.16.3)

koa NPM version =2.0.0, =1.0.0, =1.0.0, =1.0.0, =1.0.0, =1.0.0, =5.0.0-alpha.1, =5.0.0-alpha.1, =5.0.0-alpha.1, =5.0.0-alpha.1, =5.0.0-alpha.1, =5.1.3 - @ahua0920/elpis 1.0.0 and more Source cves: CVE-2026-27959 Source advisory: OSV:GHSA-7GCC-R8M5-44QM...

GHSA-7GCC-R8M5-44QM Koa has Host Header Injection via ctx.hostname

Summary Koa's ctx.hostname API performs naive parsing of the HTTP Host header, extracting everything before the first colon without validating the input conforms to RFC 3986 hostname syntax. When a malformed Host header containing a @ symbol e.g., evil.com:[email protected] is received,...

EUVD-2026-8816

Koa has Host Header Injection via ctx.hostname...

CVE-2026-27959

A flaw was found in Koa’s ctx.hostname API used in Node.js applications. The function incorrectly parses specially crafted HTTP Host headers containing an @ character, which can cause the extracted hostname value to differ from the intended origin. An attacker can exploit this behavior by sending...

HTTP Header Injection

Overview koa is a Koa web app framework Affected versions of this package are vulnerable to HTTP Header Injection via the hostname function in the. request.js file. An attacker can manipulate the value hostname by sending a specially crafted HTTP Host header containing an @ symbol, which can lead...

@0xyy/elpis (>=1.0.0, <=1.0.2), @10xsai/cloudflare-router-nx-plugin (1.0.0) +1522 more potentially affected by CVE-2026-27959 via koa (>=2.0.0, <=2.16.3)

koa NPM version =2.0.0, =1.0.0, =1.0.0, =1.0.0, =1.0.0, =1.0.0, =5.0.0-alpha.1, =5.0.0-alpha.1, =5.0.0-alpha.1, =5.0.0-alpha.1, =5.0.0-alpha.1, =5.1.3 - @ahua0920/elpis 1.0.0 and more Source cves: CVE-2026-27959 Source advisory: SNYK:JS-KOA-15353398...

HTTP Header Injection

Overview org.webjars.npm:koa is a Koa web app framework Affected versions of this package are vulnerable to HTTP Header Injection via the hostname function in the. request.js file. An attacker can manipulate the value hostname by sending a specially crafted HTTP Host header containing an @ symbol...

@akash-aw/aw-wizard-forms (4.14.0), @alfresco/aca-generators (>=1.0.0, <=1.0.1) +137 more potentially affected by CVE-2026-27959 via koa (>=3.0.0, <=3.1.1)

koa NPM version =3.0.0, =1.0.0, =1.0.0, =0.44.0, =0.0.0-nightly-20260213031600, =0.0.0-nightly-20260317031259, =0.0.0-nightly-20260317031259, =0.0.0-nightly-20260213031600, =2025.12.1, =2.23.0, =0.0.1, =0.20.0, =0.0.5, =2026.1.2, =2.0.0, =2.0.1 and more Source cves: CVE-2026-27959 Source advisory...

CVE-2026-27959

Koa is middleware for Node.js using ES2017 async functions. Prior to versions 3.1.2 and 2.16.4, Koa's ctx.hostname API performs naive parsing of the HTTP Host header, extracting everything before the first colon without validating the input conforms to RFC 3986 hostname syntax. When a malformed...

CVE-2026-27959 Koa has Host Header Injection via `ctx.hostname`

Koa is middleware for Node.js using ES2017 async functions. Prior to versions 3.1.2 and 2.16.4, Koa's ctx.hostname API performs naive parsing of the HTTP Host header, extracting everything before the first colon without validating the input conforms to RFC 3986 hostname syntax. When a malformed...

CVE-2026-27959 Koa has Host Header Injection via `ctx.hostname`

Koa is middleware for Node.js using ES2017 async functions. Prior to versions 3.1.2 and 2.16.4, Koa's ctx.hostname API performs naive parsing of the HTTP Host header, extracting everything before the first colon without validating the input conforms to RFC 3986 hostname syntax. When a malformed...

CVE-2026-27959

Koa is middleware for Node.js using ES2017 async functions. Prior to versions 3.1.2 and 2.16.4, Koa's ctx.hostname API performs naive parsing of the HTTP Host header, extracting everything before the first colon without validating the input conforms to RFC 3986 hostname syntax. When a malformed...

CVE-2026-27959 Koa has Host Header Injection via `ctx.hostname`

Koa is middleware for Node.js using ES2017 async functions. Prior to versions 3.1.2 and 2.16.4, Koa's ctx.hostname API performs naive parsing of the HTTP Host header, extracting everything before the first colon without validating the input conforms to RFC 3986 hostname syntax. When a malformed...

CVE-2026-27959

Koa (Node.js) prior to versions 3.1.2 and 2.16.4 exposes a vulnerability in ctx.hostname: it naively parses the Host header and returns an attacker-controlled value when the header contains an invalid RFC 3986 hostname (e.g., with a @). This can affect URL generation, password reset links, email ...

CVE-2026-27959: Improper Input Validation

Koa is middleware for Node.js using ES2017 async functions. Prior to versions 3.1.2 and 2.16.4, Koa's ctx.hostname API performs naive parsing of the HTTP Host header, extracting everything before the first colon without validating the input conforms to RFC 3986 hostname syntax. When a malformed...

koa 输入验证错误漏洞

Koa.js is an open-source project developed by Koa.js, which uses Node.js as an expressive middleware. Versions of Koa prior to 3.1.2 and 2.16.4 contained a vulnerability related to input validation errors. This vulnerability stemmed from improper parsing of the HTTP Host header, which could lead ...