{"id":"CVE-2026-1527","aliases":["ALSA-2026:7350","ALSA-2026:7670","ALSA-2026:7675","BELL-CVE-2026-1527","CLSA-2026-1775435423","CLSA-2026-1785204338","CLSA-2026-1790542220","CLSA-2026-1791028079","CLSA-2026-1791973587","CLSA-2026-1792867313","DEBIAN-CVE-2026-1527","EUVD-2026-11701","GHSA-4992-7rv2-5pvq","RHSA-2026:7350","RHSA-2026:7670","RHSA-2026:7675","RLSA-2026:7350","RLSA-2026:7670","RLSA-2026:7675","ROOT-APP-NPM-CVE-2026-1527","UBUNTU-CVE-2026-1527"],"status":"published","title":"undici is vulnerable to CRLF Injection via upgrade option","description":"ImpactWhen an application passes user-controlled input to the upgrade option of client.request(), an attacker can inject CRLF sequences (\\r\\n) to:\n\n  *  Inject arbitrary HTTP headers\n  *  Terminate the HTTP request prematurely and smuggle raw data to non-HTTP services (Redis, Memcached, Elasticsearch)\nThe vulnerability exists because undici writes the upgrade value directly to the socket without validating for invalid header characters:\n\n// lib/dispatcher/client-h1.js:1121\nif (upgrade) {\n  header += `connection: upgrade\\r\\nupgrade: ${upgrade}\\r\\n`\n}","severity":{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00315,"percentile":0.24683,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-93"],"published":"2026-03-12T20:17:18Z","modified":"2026-10-30T12:17:06Z","fixes":[{"ecosystem":"npm","package":"undici","fixed_in":["6.24.0","7.24.0"],"sources":["ghsa","osv"]},{"ecosystem":"Alpaquita:23","package":"nodejs","fixed_in":["20.20.2-r0"],"sources":["osv"]},{"ecosystem":"Alpaquita:25","package":"nodejs","fixed_in":["22.22.2-r0"],"sources":["osv"]},{"ecosystem":"Alpaquita:stream","package":"nodejs","fixed_in":["24.16.0-r0"],"sources":["osv"]},{"ecosystem":"BellSoft Hardened 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HSA-6933-cjhr-5qg6","tags":["article"]},{"url":"https://issues.redhat.com/browse/RHEL-151374","tags":["article"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_7670.json","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_7675.json","tags":["advisory"]},{"url":"https://errata.rockylinux.org/RLSA-2026:7350","tags":["advisory"]},{"url":"https://errata.rockylinux.org/RLSA-2026:7670","tags":["advisory"]},{"url":"https://errata.rockylinux.org/RLSA-2026:7675","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-1527","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-1527","title":"undici is vulnerable to CRLF Injection via upgrade option","description":"ImpactWhen an application passes user-controlled input to the upgrade option of client.request(), an attacker can inject CRLF sequences (\\r\\n) to:\n\n  *  Inject arbitrary HTTP headers\n  *  Terminate the HTTP request prematurely and smuggle raw data to non-HTTP services (Redis, Memcached, Elasticsearch)\nThe vulnerability exists because undici writes the upgrade value directly to the socket without validating for invalid header characters:\n\n// lib/dispatcher/client-h1.js:1121\nif (upgrade) {\n  header += `connection: upgrade\\r\\nupgrade: ${upgrade}\\r\\n`\n}","status":"published","published":"2026-03-12T20:17:18.984Z","modified":"2026-03-13T18:06:03.794Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-93"],"updated_at":"2026-11-02T14:20:01.271368Z"}],"euvd":[{"id":"EUVD-2026-11701","description":"ImpactWhen an application passes user-controlled input to the upgrade option of client.request(), an attacker can inject CRLF sequences (\\r\\n) to:\n\n  *  Inject arbitrary HTTP headers\n  *  Terminate the HTTP request prematurely and smuggle raw data to non-HTTP services (Redis, Memcached, Elasticsearch)\nThe vulnerability exists because undici writes the upgrade value directly to the socket without validating for invalid header characters:\n\n// lib/dispatcher/client-h1.js:1121\nif (upgrade) {\n  header += `connection: upgrade\\r\\nupgrade: ${upgrade}\\r\\n`\n}","status":"published","published":"2026-03-12T20:17:18Z","modified":"2026-03-13T18:06:03Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:25:35.010093Z"}],"ghsa":[{"id":"GHSA-4992-7rv2-5pvq","title":"Undici has CRLF Injection in undici via `upgrade` option","description":"### Impact\n\nWhen an application passes user-controlled input to the `upgrade` option of `client.request()`, an attacker can inject CRLF sequences (`\\r\\n`) to:\n\n1. Inject arbitrary HTTP headers\n2. Terminate the HTTP request prematurely and smuggle raw data to non-HTTP services (Redis, Memcached, Elasticsearch)\n\nThe vulnerability exists because undici writes the `upgrade` value directly to the socket without validating for invalid header characters:\n\n```javascript\n// lib/dispatcher/client-h1.js:1121\nif (upgrade) {\n  header += `connection: upgrade\\r\\nupgrade: ${upgrade}\\r\\n`\n}\n```\n\n### Patches\n\n Patched in the undici version v7.24.0 and v6.24.0. Users should upgrade to this version or later.\n\n### Workarounds\n\nSanitize the `upgrade` option string before passing to undici:\n\n```javascript\nfunction sanitizeUpgrade(value) {\n  if (/[\\r\\n]/.test(value)) {\n    throw new Error('Invalid upgrade value')\n  }\n  return value\n}\n\nclient.request({\n  upgrade: sanitizeUpgrade(userInput)\n})\n```","status":"published","published":"2026-03-13T20:41:26Z","modified":"2026-03-13T20:41:28Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-93"],"updated_at":"2026-11-02T14:39:35.644357Z"}],"nvd":[{"id":"CVE-2026-1527","description":"ImpactWhen an application passes user-controlled input to the upgrade option of client.request(), an attacker can inject CRLF sequences (\\r\\n) to:\n\n  *  Inject arbitrary HTTP headers\n  *  Terminate the HTTP request prematurely and smuggle raw data to non-HTTP services (Redis, Memcached, Elasticsearch)\nThe vulnerability exists because undici writes the upgrade value directly to the socket without validating for invalid header characters:\n\n// lib/dispatcher/client-h1.js:1121\nif (upgrade) {\n  header += `connection: upgrade\\r\\nupgrade: ${upgrade}\\r\\n`\n}","status":"published","published":"2026-03-12T21:16:25.137Z","modified":"2026-06-17T10:16:00.187Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-93"],"updated_at":"2026-11-02T14:12:09.358914Z"}],"osv":[{"id":"BELL-CVE-2026-1527","status":"published","published":"2026-03-13T06:08:19.992392Z","modified":"2026-06-16T07:15:06.427768591Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:28:23.037038Z"},{"id":"CVE-2026-1527","title":"undici is vulnerable to CRLF Injection via upgrade option","description":"ImpactWhen an application passes user-controlled input to the upgrade option of client.request(), an attacker can inject CRLF sequences (\\r\\n) to:\n\n  *  Inject arbitrary HTTP headers\n  *  Terminate the HTTP request prematurely and smuggle raw data to non-HTTP services (Redis, Memcached, Elasticsearch)\nThe vulnerability exists because undici writes the upgrade value directly to the socket without validating for invalid header characters:\n\n// lib/dispatcher/client-h1.js:1121\nif (upgrade) {\n  header += `connection: upgrade\\r\\nupgrade: ${upgrade}\\r\\n`\n}","status":"published","published":"2026-03-12T20:17:18.984Z","modified":"2026-10-28T02:31:05.420599761Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-93"],"updated_at":"2026-11-02T15:44:57.682091Z"},{"id":"DEBIAN-CVE-2026-1527","description":"ImpactWhen an application passes user-controlled input to the upgrade option of client.request(), an attacker can inject CRLF sequences (\\r\\n) to:    *  Inject arbitrary HTTP headers   *  Terminate the HTTP request prematurely and smuggle raw data to non-HTTP services (Redis, Memcached, Elasticsearch) The vulnerability exists because undici writes the upgrade value directly to the socket without validating for invalid header characters:  // lib/dispatcher/client-h1.js:1121 if (upgrade) {   header += `connection: upgrade\\r\\nupgrade: ${upgrade}\\r\\n` }","status":"published","published":"2026-03-12T21:16:25.137Z","modified":"2026-10-01T03:02:49.810026414Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:52.562592Z"},{"id":"GHSA-4992-7rv2-5pvq","title":"Undici has CRLF Injection in undici via `upgrade` option","description":"### Impact\n\nWhen an application passes user-controlled input to the `upgrade` option of `client.request()`, an attacker can inject CRLF sequences (`\\r\\n`) to:\n\n1. Inject arbitrary HTTP headers\n2. Terminate the HTTP request prematurely and smuggle raw data to non-HTTP services (Redis, Memcached, Elasticsearch)\n\nThe vulnerability exists because undici writes the `upgrade` value directly to the socket without validating for invalid header characters:\n\n```javascript\n// lib/dispatcher/client-h1.js:1121\nif (upgrade) {\n  header += `connection: upgrade\\r\\nupgrade: ${upgrade}\\r\\n`\n}\n```\n\n### Patches\n\n Patched in the undici version v7.24.0 and v6.24.0. Users should upgrade to this version or later.\n\n### Workarounds\n\nSanitize the `upgrade` option string before passing to undici:\n\n```javascript\nfunction sanitizeUpgrade(value) {\n  if (/[\\r\\n]/.test(value)) {\n    throw new Error('Invalid upgrade value')\n  }\n  return value\n}\n\nclient.request({\n  upgrade: sanitizeUpgrade(userInput)\n})\n```","status":"published","published":"2026-03-13T20:41:26Z","modified":"2026-09-10T03:50:37.246920699Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-93"],"updated_at":"2026-11-02T15:46:36.782754Z"},{"id":"RHSA-2026:7350","title":"Red Hat Security Advisory: nodejs:24 security update","status":"published","published":"2026-04-10T10:09:15Z","modified":"2026-10-20T10:15:16Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:22.928316Z"},{"id":"RHSA-2026:7670","title":"Red Hat Security Advisory: nodejs:24 security update","status":"published","published":"2026-04-13T10:07:20Z","modified":"2026-10-20T10:15:57Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:22.928316Z"},{"id":"RHSA-2026:7675","title":"Red Hat Security Advisory: nodejs24 security update","status":"published","published":"2026-04-13T10:07:23Z","modified":"2026-10-20T10:16:00Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:22.928316Z"},{"id":"RLSA-2026:7350","title":"Important: nodejs:24 security update","description":"Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. \n\nSecurity Fix(es):\n\n* nodejs: Nodejs denial of service (CVE-2026-21637)\n\n* brace-expansion: brace-expansion: Denial of Service via unbounded brace range expansion (CVE-2026-25547)\n\n* minimatch: minimatch: Denial of Service via specially crafted glob patterns (CVE-2026-26996)\n\n* undici: Undici: Denial of Service due to uncontrolled resource consumption (CVE-2026-2581)\n\n* undici: Undici: HTTP header injection and request smuggling vulnerability (CVE-2026-1527)\n\n* undici: undici: Denial of Service via unbounded memory consumption during WebSocket permessage-deflate decompression (CVE-2026-1526)\n\n* undici: Undici: Denial of Service via invalid WebSocket permessage-deflate extension parameter (CVE-2026-2229)\n\n* undici: Undici: HTTP Request Smuggling and Denial of Service due to duplicate Content-Length headers (CVE-2026-1525)\n\n* undici: undici: Denial of Service via crafted WebSocket frame with large length (CVE-2026-1528)\n\n* nghttp2: nghttp2: Denial of Service via malformed HTTP/2 frames after session termination (CVE-2026-27135)\n\n* Node.js: Node.js: Denial of Service via malformed Internationalized Domain Name processing (CVE-2026-21712)\n\n* Node.js: Node.js: Denial of Service due to crafted HTTP `__proto__` header (CVE-2026-21710)\n\n* Node.js: Node.js: Information disclosure due to `fs.realpathSync.native()` bypassing filesystem read restrictions (CVE-2026-21715)\n\n* nodejs: Node.js: Permission bypass allows unauthorized modification of file permissions and ownership via incomplete security fix. (CVE-2026-21716)\n\n* Node.js: Node.js: Unauthorized inter-process communication due to missing Unix Domain Socket permission checks (CVE-2026-21711)\n\n* Node.js: Node.js: Information disclosure via timing oracle in HMAC verification (CVE-2026-21713)\n\n* Node.js: Node.js: Memory leak and Denial of Service via crafted HTTP/2 WINDOW_UPDATE frames (CVE-2026-21714)\n\n* nodejs: v8: Node.js: Denial of Service via V8 string hashing mechanism due to predictable hash collisions (CVE-2026-21717)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2026-04-10T00:04:09.070331Z","modified":"2026-04-10T00:30:06.392552Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:26.449929Z"},{"id":"RLSA-2026:7670","title":"Important: nodejs:24 security update","description":"Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. \n\nSecurity Fix(es):\n\n* nodejs: Nodejs denial of service (CVE-2026-21637)\n\n* minimatch: minimatch: Denial of Service via specially crafted glob patterns (CVE-2026-26996)\n\n* undici: Undici: Denial of Service due to uncontrolled resource consumption (CVE-2026-2581)\n\n* undici: Undici: HTTP header injection and request smuggling vulnerability (CVE-2026-1527)\n\n* undici: undici: Denial of Service via unbounded memory consumption during WebSocket permessage-deflate decompression (CVE-2026-1526)\n\n* undici: Undici: Denial of Service via invalid WebSocket permessage-deflate extension parameter (CVE-2026-2229)\n\n* undici: Undici: HTTP Request Smuggling and Denial of Service due to duplicate Content-Length headers (CVE-2026-1525)\n\n* undici: undici: Denial of Service via crafted WebSocket frame with large length (CVE-2026-1528)\n\n* nghttp2: nghttp2: Denial of Service via malformed HTTP/2 frames after session termination (CVE-2026-27135)\n\n* Node.js: Node.js: Denial of Service via malformed Internationalized Domain Name processing (CVE-2026-21712)\n\n* Node.js: Node.js: Denial of Service due to crafted HTTP `__proto__` header (CVE-2026-21710)\n\n* Node.js: Node.js: Information disclosure due to `fs.realpathSync.native()` bypassing filesystem read restrictions (CVE-2026-21715)\n\n* nodejs: Node.js: Permission bypass allows unauthorized modification of file permissions and ownership via incomplete security fix. (CVE-2026-21716)\n\n* Node.js: Node.js: Unauthorized inter-process communication due to missing Unix Domain Socket permission checks (CVE-2026-21711)\n\n* Node.js: Node.js: Information disclosure via timing oracle in HMAC verification (CVE-2026-21713)\n\n* Node.js: Node.js: Memory leak and Denial of Service via crafted HTTP/2 WINDOW_UPDATE frames (CVE-2026-21714)\n\n* nodejs: v8: Node.js: Denial of Service via V8 string hashing mechanism due to predictable hash collisions (CVE-2026-21717)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2026-04-13T06:01:13.567166Z","modified":"2026-04-13T06:30:06.733151Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:26.449929Z"},{"id":"RLSA-2026:7675","title":"Important: nodejs24 security update","description":"Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.\n\nSecurity Fix(es):\n\n* nodejs: Nodejs denial of service (CVE-2026-21637)\n\n* brace-expansion: brace-expansion: Denial of Service via unbounded brace range expansion (CVE-2026-25547)\n\n* minimatch: minimatch: Denial of Service via specially crafted glob patterns (CVE-2026-26996)\n\n* undici: Undici: Denial of Service due to uncontrolled resource consumption (CVE-2026-2581)\n\n* undici: Undici: HTTP header injection and request smuggling vulnerability (CVE-2026-1527)\n\n* undici: undici: Denial of Service via unbounded memory consumption during WebSocket permessage-deflate decompression (CVE-2026-1526)\n\n* undici: Undici: Denial of Service via invalid WebSocket permessage-deflate extension parameter (CVE-2026-2229)\n\n* undici: Undici: HTTP Request Smuggling and Denial of Service due to duplicate Content-Length headers (CVE-2026-1525)\n\n* undici: undici: Denial of Service via crafted WebSocket frame with large length (CVE-2026-1528)\n\n* nghttp2: nghttp2: Denial of Service via malformed HTTP/2 frames after session termination (CVE-2026-27135)\n\n* Node.js: Node.js: Denial of Service via malformed Internationalized Domain Name processing (CVE-2026-21712)\n\n* Node.js: Node.js: Denial of Service due to crafted HTTP `__proto__` header (CVE-2026-21710)\n\n* Node.js: Node.js: Information disclosure due to `fs.realpathSync.native()` bypassing filesystem read restrictions (CVE-2026-21715)\n\n* nodejs: Node.js: Permission bypass allows unauthorized modification of file permissions and ownership via incomplete security fix. (CVE-2026-21716)\n\n* Node.js: Node.js: Unauthorized inter-process communication due to missing Unix Domain Socket permission checks (CVE-2026-21711)\n\n* Node.js: Node.js: Information disclosure via timing oracle in HMAC verification (CVE-2026-21713)\n\n* Node.js: Node.js: Memory leak and Denial of Service via crafted HTTP/2 WINDOW_UPDATE frames (CVE-2026-21714)\n\n* nodejs: v8: Node.js: Denial of Service via V8 string hashing mechanism due to predictable hash collisions (CVE-2026-21717)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2026-04-15T12:07:10.074197Z","modified":"2026-04-15T12:30:34.977687Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:26.449929Z"},{"id":"ROOT-APP-NPM-CVE-2026-1527","title":"CVE-2026-1527 in undici - Patched by Root","description":"Root has patched CVE-2026-1527 in the undici package for Root:npm. Multiple fixed versions available.","status":"published","published":"2026-10-30T11:34:43Z","modified":"2026-10-30T12:17:06.926216624Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:53:27.649662Z"},{"id":"UBUNTU-CVE-2026-1527","description":"ImpactWhen an application passes user-controlled input to the upgrade option of client.request(), an attacker can inject CRLF sequences (\\r\\n) to:   *  Inject arbitrary HTTP headers   *  Terminate the HTTP request prematurely and smuggle raw data to non-HTTP services (Redis, Memcached, Elasticsearch) The vulnerability exists because undici writes the upgrade value directly to the socket without validating for invalid header characters: // lib/dispatcher/client-h1.js:1121 if (upgrade) {   header += `connection: upgrade\\r\\nupgrade: ${upgrade}\\r\\n` }","status":"published","published":"2026-03-12T21:16:00Z","modified":"2026-10-17T12:59:53.568651011Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T16:56:00.592716Z"},{"id":"ALSA-2026:7350","title":"Important: nodejs:24 security update","description":"Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language.   \n\nSecurity Fix(es):  \n\n  * nodejs: Nodejs denial of service (CVE-2026-21637)\n  * brace-expansion: brace-expansion: Denial of Service via unbounded brace range expansion (CVE-2026-25547)\n  * minimatch: minimatch: Denial of Service via specially crafted glob patterns (CVE-2026-26996)\n  * undici: Undici: Denial of Service due to uncontrolled resource consumption (CVE-2026-2581)\n  * undici: Undici: HTTP header injection and request smuggling vulnerability (CVE-2026-1527)\n  * undici: undici: Denial of Service via unbounded memory consumption during WebSocket permessage-deflate decompression (CVE-2026-1526)\n  * undici: Undici: Denial of Service via invalid WebSocket permessage-deflate extension parameter (CVE-2026-2229)\n  * undici: Undici: HTTP Request Smuggling and Denial of Service due to duplicate Content-Length headers (CVE-2026-1525)\n  * undici: undici: Denial of Service via crafted WebSocket frame with large length (CVE-2026-1528)\n  * nghttp2: nghttp2: Denial of Service via malformed HTTP/2 frames after session termination (CVE-2026-27135)\n  * Node.js: Node.js: Denial of Service via malformed Internationalized Domain Name processing (CVE-2026-21712)\n  * Node.js: Node.js: Denial of Service due to crafted HTTP `__proto__` header (CVE-2026-21710)\n  * Node.js: Node.js: Information disclosure due to `fs.realpathSync.native()` bypassing filesystem read restrictions (CVE-2026-21715)\n  * nodejs: Node.js: Permission bypass allows unauthorized modification of file permissions and ownership via incomplete security fix. (CVE-2026-21716)\n  * Node.js: Node.js: Unauthorized inter-process communication due to missing Unix Domain Socket permission checks (CVE-2026-21711)\n  * Node.js: Node.js: Information disclosure via timing oracle in HMAC verification (CVE-2026-21713)\n  * Node.js: Node.js: Memory leak and Denial of Service via crafted HTTP/2 WINDOW_UPDATE frames (CVE-2026-21714)\n  * nodejs: v8: Node.js: Denial of Service via V8 string hashing mechanism due to predictable hash collisions (CVE-2026-21717)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","status":"published","published":"2026-04-09T00:00:00Z","modified":"2026-10-29T11:32:37.577752858Z","updated_at":"2026-11-02T15:27:55.200553Z"},{"id":"ALSA-2026:7670","title":"Important: nodejs:24 security update","description":"Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language.   \n\nSecurity Fix(es):  \n\n  * nodejs: Nodejs denial of service (CVE-2026-21637)\n  * minimatch: minimatch: Denial of Service via specially crafted glob patterns (CVE-2026-26996)\n  * undici: Undici: Denial of Service due to uncontrolled resource consumption (CVE-2026-2581)\n  * undici: Undici: HTTP header injection and request smuggling vulnerability (CVE-2026-1527)\n  * undici: undici: Denial of Service via unbounded memory consumption during WebSocket permessage-deflate decompression (CVE-2026-1526)\n  * undici: Undici: Denial of Service via invalid WebSocket permessage-deflate extension parameter (CVE-2026-2229)\n  * undici: Undici: HTTP Request Smuggling and Denial of Service due to duplicate Content-Length headers (CVE-2026-1525)\n  * undici: undici: Denial of Service via crafted WebSocket frame with large length (CVE-2026-1528)\n  * nghttp2: nghttp2: Denial of Service via malformed HTTP/2 frames after session termination (CVE-2026-27135)\n  * Node.js: Node.js: Denial of Service via malformed Internationalized Domain Name processing (CVE-2026-21712)\n  * Node.js: Node.js: Denial of Service due to crafted HTTP `__proto__` header (CVE-2026-21710)\n  * Node.js: Node.js: Information disclosure due to `fs.realpathSync.native()` bypassing filesystem read restrictions (CVE-2026-21715)\n  * nodejs: Node.js: Permission bypass allows unauthorized modification of file permissions and ownership via incomplete security fix. (CVE-2026-21716)\n  * Node.js: Node.js: Unauthorized inter-process communication due to missing Unix Domain Socket permission checks (CVE-2026-21711)\n  * Node.js: Node.js: Information disclosure via timing oracle in HMAC verification (CVE-2026-21713)\n  * Node.js: Node.js: Memory leak and Denial of Service via crafted HTTP/2 WINDOW_UPDATE frames (CVE-2026-21714)\n  * nodejs: v8: Node.js: Denial of Service via V8 string hashing mechanism due to predictable hash collisions (CVE-2026-21717)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","status":"published","published":"2026-04-13T00:00:00Z","modified":"2026-10-29T11:02:29.661659123Z","updated_at":"2026-11-02T15:27:55.200553Z"},{"id":"ALSA-2026:7675","title":"Important: nodejs24 security update","description":"Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.  \n\nSecurity Fix(es):  \n\n  * nodejs: Nodejs denial of service (CVE-2026-21637)\n  * brace-expansion: brace-expansion: Denial of Service via unbounded brace range expansion (CVE-2026-25547)\n  * minimatch: minimatch: Denial of Service via specially crafted glob patterns (CVE-2026-26996)\n  * undici: Undici: Denial of Service due to uncontrolled resource consumption (CVE-2026-2581)\n  * undici: Undici: HTTP header injection and request smuggling vulnerability (CVE-2026-1527)\n  * undici: undici: Denial of Service via unbounded memory consumption during WebSocket permessage-deflate decompression (CVE-2026-1526)\n  * undici: Undici: Denial of Service via invalid WebSocket permessage-deflate extension parameter (CVE-2026-2229)\n  * undici: Undici: HTTP Request Smuggling and Denial of Service due to duplicate Content-Length headers (CVE-2026-1525)\n  * undici: undici: Denial of Service via crafted WebSocket frame with large length (CVE-2026-1528)\n  * nghttp2: nghttp2: Denial of Service via malformed HTTP/2 frames after session termination (CVE-2026-27135)\n  * Node.js: Node.js: Denial of Service via malformed Internationalized Domain Name processing (CVE-2026-21712)\n  * Node.js: Node.js: Denial of Service due to crafted HTTP `__proto__` header (CVE-2026-21710)\n  * Node.js: Node.js: Information disclosure due to `fs.realpathSync.native()` bypassing filesystem read restrictions (CVE-2026-21715)\n  * nodejs: Node.js: Permission bypass allows unauthorized modification of file permissions and ownership via incomplete security fix. (CVE-2026-21716)\n  * Node.js: Node.js: Unauthorized inter-process communication due to missing Unix Domain Socket permission checks (CVE-2026-21711)\n  * Node.js: Node.js: Information disclosure via timing oracle in HMAC verification (CVE-2026-21713)\n  * Node.js: Node.js: Memory leak and Denial of Service via crafted HTTP/2 WINDOW_UPDATE frames (CVE-2026-21714)\n  * nodejs: v8: Node.js: Denial of Service via V8 string hashing mechanism due to predictable hash collisions (CVE-2026-21717)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","status":"published","published":"2026-04-13T00:00:00Z","modified":"2026-10-29T11:30:49.714638043Z","updated_at":"2026-11-02T15:27:55.200553Z"},{"id":"CLSA-2026-1775435423","title":"TuxCare security update for undici (3 CVEs)","description":"TuxCare rebuilt undici to address 3 CVEs. Fixed in 5.29.0-tuxcare.4.","status":"published","published":"2026-08-04T14:52:22Z","modified":"2026-10-15T09:47:49.516536742Z","updated_at":"2026-11-02T15:43:44.009773Z"},{"id":"CLSA-2026-1785204338","title":"TuxCare security update for undici (6 CVEs)","description":"TuxCare rebuilt undici to address 6 CVEs. Fixed in 6.11.1-tuxcare.4.","status":"published","published":"2026-08-04T14:52:49Z","modified":"2026-10-15T09:47:37.324760253Z","updated_at":"2026-11-02T15:43:46.482572Z"},{"id":"CLSA-2026-1790542220","title":"TuxCare security update for undici (12 CVEs)","description":"TuxCare rebuilt undici to address 12 CVEs. Fixed in 6.19.7-tuxcare.1.","status":"published","published":"2026-09-27T20:50:20Z","modified":"2026-10-15T09:45:09.792474642Z","updated_at":"2026-11-02T15:43:48.65893Z"},{"id":"CLSA-2026-1791028079","title":"TuxCare security update for undici (11 CVEs)","description":"TuxCare rebuilt undici to address 11 CVEs. Fixed in 6.19.5-tuxcare.2.","status":"published","published":"2026-10-03T11:47:59Z","modified":"2026-10-15T09:47:57.895518604Z","updated_at":"2026-11-02T15:43:49.016976Z"},{"id":"CLSA-2026-1791973587","title":"TuxCare security update for undici (15 CVEs)","description":"TuxCare rebuilt undici to address 15 CVEs. Fixed in 6.20.0-tuxcare.3.","status":"published","published":"2026-10-14T10:26:27Z","modified":"2026-10-24T19:15:03.446818583Z","updated_at":"2026-11-02T15:43:50.599064Z"},{"id":"CLSA-2026-1792867313","title":"TuxCare security update for undici-types (15 CVEs)","description":"TuxCare rebuilt undici-types to address 15 CVEs. Fixed in 6.20.0-tuxcare.3.","status":"published","published":"2026-10-24T18:41:49Z","modified":"2026-10-25T01:30:04.32437095Z","updated_at":"2026-11-02T15:43:54.981307Z"}]}}