Linux · 
AlmaLinux · Security advisory · April 15, 2026
AlmaLinux · Security advisory · April 15, 2026ALSA-2026:8339: Security update for 8 packages
ALSA-2026:8339, released April 15, 2026, fixes 4 CVEs across 8 products. None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
4
None rated Critical
Exploited
0
None reported
Highest CVSS
7.5
Base score, 0 to 10
Highest EPSS
0.2544
97th percentile
Priority of the 4 CVEs
Patch now 0
Urgent 0
High 4
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| nodejs | almalinux 8 | 1:20.20.2-1.module_el8.10.0+4165+3f200bda |
| nodejs-devel | almalinux 8 | 1:20.20.2-1.module_el8.10.0+4165+3f200bda |
| nodejs-docs | almalinux 8 | 1:20.20.2-1.module_el8.10.0+4165+3f200bda |
| nodejs-full-i18n | almalinux 8 | 1:20.20.2-1.module_el8.10.0+4165+3f200bda |
| nodejs-nodemon | almalinux 8 | 3.0.1-1.module_el8.10.0+3982+85c136aa |
| nodejs-packaging | almalinux 8 | 2021.06-6.module_el8.10.0+4165+3f200bda |
| nodejs-packaging-bundler | almalinux 8 | 2021.06-6.module_el8.10.0+4165+3f200bda |
| npm | almalinux 8 | 1:10.8.2-1.20.20.2.1.module_el8.10.0+4165+3f200bda |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| 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-2026-27135 | nghttp2 Denial of service: Assertion failure due to the missing state validation | 7.5 | 0.0082 | None reported |
| High | CVE-2026-26996 | nodejs-libs: Node.js is a software development platform for building fast and scalable network applications in the JavaScript prog... | 7.5 | 0.0058 | None reported |
| High | CVE-2026-27904 | nodejs-libs: Node.js is a software development platform for building fast and scalable network applications in the JavaScript prog... | 7.5 | 0.0053 | None reported |
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