# ELSA-2026-7670: Security update for 10 packages ELSA-2026-7670, released April 13, 2026, fixes 16 CVEs across 10 products. None of them is reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/fix/linux/elsa-2026-7670 - Platform: Linux - Released: Apr 13, 2026 - Priority: High (Closes CVE-2026-21710, high severity) - CVEs: 16, exploited: 0, on CISA KEV: 0 - Vendor advisory: https://linux.oracle.com/errata/ELSA-2026-7670.html ## Applies to | Product | Release | Fixed in | |---|---|---| | [nodejs](https://patchblox.com/security/data/product/linux/nodejs.md) | ol 8 | 1:24.14.1-2.module+el8.10.0+90873+35652ecc | | [nodejs-devel](https://patchblox.com/security/data/product/linux/nodejs-devel.md) | ol 8 | 1:24.14.1-2.module+el8.10.0+90873+35652ecc | | [nodejs-docs](https://patchblox.com/security/data/product/linux/nodejs-docs.md) | ol 8 | 1:24.14.1-2.module+el8.10.0+90873+35652ecc | | [nodejs-full-i18n](https://patchblox.com/security/data/product/linux/nodejs-full-i18n.md) | ol 8 | 1:24.14.1-2.module+el8.10.0+90873+35652ecc | | [nodejs-libs](https://patchblox.com/security/data/product/linux/nodejs-libs.md) | ol 8 | 1:24.14.1-2.module+el8.10.0+90873+35652ecc | | [nodejs-nodemon](https://patchblox.com/security/data/product/linux/nodejs-nodemon.md) | ol 8 | 0:3.0.3-1.module+el8.10.0+90873+35652ecc | | [nodejs-packaging](https://patchblox.com/security/data/product/linux/nodejs-packaging.md) | ol 8 | 0:2021.06-6.module+el8.10.0+90873+35652ecc | | [nodejs-packaging-bundler](https://patchblox.com/security/data/product/linux/nodejs-packaging-bundler.md) | ol 8 | 0:2021.06-6.module+el8.10.0+90873+35652ecc | | [npm](https://patchblox.com/security/data/product/linux/npm.md) | ol 8 | 1:11.11.0-1.24.14.1.2.module+el8.10.0+90873+35652ecc | | [v8-13.6-devel](https://patchblox.com/security/data/product/linux/v8-13.6-devel.md) | ol 8 | 3:13.6.233.17-1.24.14.1.2.module+el8.10.0+90873+35652ecc | ## CVEs this fix closes | CVE | Priority | Title | CVSS | EPSS | Exploitation | |---|---|---|---:|---:|---| | [CVE-2026-21710](https://patchblox.com/security/data/cve/CVE-2026-21710.md) | High | A flaw in Node.js HTTP request handling causes an uncaught `TypeError` when a request is received with a header named `__proto__` and the application accesses `req.headersDistinct`. When this occurs, `dest["__proto__"]` resolves to `Object.prototype` rather than `undefined`, causing `.push()` to be called on a non-array. This exception is thrown synchronously inside a property getter and cannot be intercepted by `error` event listeners, meaning it cannot be handled without wrapping every `req.headersDistinct` access in a `try/catch`. * This vulnerability affects all Node.js HTTP servers on **20.x, 22.x, 24.x, and v25.x** | 7.5 | 0.2544 | | | [CVE-2026-1526](https://patchblox.com/security/data/cve/CVE-2026-1526.md) | High | nodejs: Node.js is a software development platform for building fast and scalable network applications in the JavaScript prog... | 7.5 | 0.0128 | | | [CVE-2026-2229](https://patchblox.com/security/data/cve/CVE-2026-2229.md) | High | nodejs: Node.js is a software development platform for building fast and scalable network applications in the JavaScript prog... | 7.5 | 0.0100 | | | [CVE-2026-27135](https://patchblox.com/security/data/cve/CVE-2026-27135.md) | High | nghttp2 Denial of service: Assertion failure due to the missing state validation | 7.5 | 0.0082 | | | [CVE-2026-2581](https://patchblox.com/security/data/cve/CVE-2026-2581.md) | High | nodejs-devel: Node.js is a software development platform for building fast and scalable network applications in the JavaScript prog... | 7.5 | 0.0063 | | | [CVE-2026-26996](https://patchblox.com/security/data/cve/CVE-2026-26996.md) | High | nodejs-libs: Node.js is a software development platform for building fast and scalable network applications in the JavaScript prog... | 7.5 | 0.0058 | | | [CVE-2026-1525](https://patchblox.com/security/data/cve/CVE-2026-1525.md) | High | nodejs: Node.js is a software development platform for building fast and scalable network applications in the JavaScript prog... | 9.8 | 0.0056 | | | [CVE-2026-1528](https://patchblox.com/security/data/cve/CVE-2026-1528.md) | High | nodejs: Node.js is a software development platform for building fast and scalable network applications in the JavaScript prog... | 7.5 | 0.0056 | | | [CVE-2026-21714](https://patchblox.com/security/data/cve/CVE-2026-21714.md) | High | Node.js 14 and 15 others: Missing Release of Memory after Effective Lifetime | 7.5 | 0.0043 | | | [CVE-2026-21713](https://patchblox.com/security/data/cve/CVE-2026-21713.md) | High | Node.js 14 and 15 others: Observable Timing Discrepancy | 7.5 | 0.0037 | | | [CVE-2026-21712](https://patchblox.com/security/data/cve/CVE-2026-21712.md) | High | A flaw in Node.js URL processing causes an assertion failure in native code when `url.format()` is called with a malformed internationalized domain name (IDN) containing invalid characters, crashing the Node.js process. | 7.5 | 0.0033 | | | [CVE-2026-1527](https://patchblox.com/security/data/cve/CVE-2026-1527.md) | High | nodejs: Node.js is a software development platform for building fast and scalable network applications in the JavaScript prog... | 7.5 | 0.0032 | | | [CVE-2026-21717](https://patchblox.com/security/data/cve/CVE-2026-21717.md) | High | A flaw in V8's string hashing mechanism causes integer-like strings to be hashed to their numeric value, making hash collisions trivially predictable. By crafting a request that causes many such collisions in V8's internal string table, an attacker can significantly degrade performance of the Node.js process. The most common trigger is any endpoint that calls `JSON.parse()` on attacker-controlled input, as JSON parsing automatically internalizes short strings into the affected hash table. This vulnerability affects **20.x, 22.x, 24.x, and 25.x**. | 7.5 | 0.0027 | | | [CVE-2026-21711](https://patchblox.com/security/data/cve/CVE-2026-21711.md) | High | Node.js 14 and 12 others: Improper Access Control | 7.5 | 0.0017 | | | [CVE-2026-21715](https://patchblox.com/security/data/cve/CVE-2026-21715.md) | High | Node.js 14 and 15 others: Incorrect Permission Assignment for Critical Resource | 7.5 | 0.0015 | | | [CVE-2026-21716](https://patchblox.com/security/data/cve/CVE-2026-21716.md) | High | Node.js 14 and 15 others: Missing Authorization | 7.5 | 0.0014 | | --- Data as of 2026-11-07T18:46:35Z UTC. 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