Linux · Fedora · Security advisory · April 30, 2026

FEDORA-2026-E3F870229A: Security update for 12 packages

FEDORA-2026-E3F870229A, released April 30, 2026, fixes 11 CVEs across 12 products. None of them is reported as exploited. Patch Radar priority: High.

High
CVEs closed
11
None rated Critical
Exploited
0
None reported
Highest CVSS
9.8
Base score, 0 to 10
Highest EPSS
0.2544
97th percentile

Priority of the 11 CVEs

Patch now 0 Urgent 0 High 11 Routine 0

Fixed package versions

ProductReleaseFixed in
nodejsFedora 431:22.22.2-2.fc43
nodejs-debuginfoFedora 431:22.22.2-2.fc43
nodejs-develFedora 431:22.22.2-2.fc43
nodejs-docsFedora 431:22.22.2-2.fc43
nodejs-full-i18nFedora 431:22.22.2-2.fc43
nodejs-libsFedora 431:22.22.2-2.fc43
nodejs-libs-debuginfoFedora 431:22.22.2-2.fc43
nodejs-npmFedora 431:10.9.7-1.22.22.2.2.fc43
nodejs22Fedora 431:22.22.2-2.fc43
nodejs22-debuginfoFedora 431:22.22.2-2.fc43
nodejs22-debugsourceFedora 431:22.22.2-2.fc43
v8-12.4-develFedora 433:12.4.254.21-1.22.22.2.2.fc43

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
High CVE-2026-21710 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 None reported
High CVE-2026-1526 nodejs: Node.js is a software development platform for building fast and scalable network applications in the JavaScript prog...7.5 0.0128 None reported
High CVE-2026-2229 nodejs: Node.js is a software development platform for building fast and scalable network applications in the JavaScript prog...7.5 0.0100 None reported
High CVE-2026-1525 nodejs: Node.js is a software development platform for building fast and scalable network applications in the JavaScript prog...9.8 0.0056 None reported
High CVE-2026-1528 nodejs: Node.js is a software development platform for building fast and scalable network applications in the JavaScript prog...7.5 0.0056 None reported
High CVE-2026-21714 Node.js 14 and 15 others: Missing Release of Memory after Effective Lifetime7.5 0.0043 None reported
High CVE-2026-21713 Node.js 14 and 15 others: Observable Timing Discrepancy7.5 0.0037 None reported
High CVE-2026-1527 nodejs: Node.js is a software development platform for building fast and scalable network applications in the JavaScript prog...7.5 0.0032 None reported
High CVE-2026-21717 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 None reported
High CVE-2026-21715 Node.js 14 and 15 others: Incorrect Permission Assignment for Critical Resource7.5 0.0015 None reported
High CVE-2026-21716 Node.js 14 and 15 others: Missing Authorization7.5 0.0014 None reported
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